mirror of
https://github.com/querydsl/querydsl.git
synced 2026-07-06 21:05:50 +08:00
Simplified customizability of LuceneSerializer
This commit is contained in:
Timo Westkämper
parent
d3d368edeb
commit
b8963a09d2
@ -149,31 +149,31 @@ public class LuceneSerializer {
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protected Query like(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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String[] terms = createTerms(operation.getArg(1), tokenized, metadata);
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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String[] terms = convert(path, operation.getArg(1));
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if (terms.length > 1) {
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BooleanQuery bq = new BooleanQuery();
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for (String s : terms) {
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bq.add(new WildcardQuery(new Term(field, "*" + normalize(operation.getArg(0), s) + "*")), Occur.MUST);
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bq.add(new WildcardQuery(new Term(field, "*" + s + "*")), Occur.MUST);
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}
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return bq;
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}
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return new WildcardQuery(new Term(field, normalize(operation.getArg(0), terms[0])));
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return new WildcardQuery(new Term(field, terms[0]));
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}
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@SuppressWarnings("unchecked")
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protected Query eq(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
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verifyArguments(operation);
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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if (Number.class.isAssignableFrom(operation.getArg(1).getType())) {
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return new TermQuery(new Term(field, convertNumber(((Constant<Number>) operation
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.getArg(1)).getConstant())));
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}
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return eq(operation.getArg(0), field, createTerms(operation.getArg(1), tokenized, metadata), ignoreCase);
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return eq(field, convert(path, operation.getArg(1), metadata), ignoreCase);
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}
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@ -200,32 +200,27 @@ public class LuceneSerializer {
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}
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}
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protected Query eq(Expression<?> expr, String field, String[] terms, boolean ignoreCase) {
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protected Query eq(String field, String[] terms, boolean ignoreCase) {
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if (terms.length > 1) {
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PhraseQuery pq = new PhraseQuery();
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for (String s : terms) {
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pq.add(new Term(field, normalize(expr, s)));
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pq.add(new Term(field, s));
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}
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return pq;
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}
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return new TermQuery(new Term(field, (ignoreCase ? normalize(expr, terms[0]) : terms[0])));
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return new TermQuery(new Term(field, terms[0]));
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}
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protected Query in(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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@SuppressWarnings({ "rawtypes" })
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Collection values = (Collection) ((Constant) operation.getArg(1)).getConstant();
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BooleanQuery bq = new BooleanQuery();
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for (Object value : values) {
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// FIXME : use proper splitting
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String str = convert(operation.getArg(0), value);
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bq.add(
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eq(operation.getArg(0),
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field,
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tokenized ? StringUtils.split(str) : new String[] { str },
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ignoreCase),
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Occur.SHOULD);
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String[] str = convert(path, value);
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bq.add(eq(field, str, ignoreCase), Occur.SHOULD);
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}
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return bq;
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}
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@ -238,59 +233,60 @@ public class LuceneSerializer {
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protected Query startsWith(QueryMetadata metadata, Operation<?> operation, boolean ignoreCase) {
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verifyArguments(operation);
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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String[] terms = createEscapedTerms(operation.getArg(1), tokenized, metadata);
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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String[] terms = convertEscaped(path, operation.getArg(1), metadata);
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if (terms.length > 1) {
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BooleanQuery bq = new BooleanQuery();
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for (int i = 0; i < terms.length; ++i) {
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String s = i == 0 ? terms[i] + "*" : "*" + terms[i] + "*";
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bq.add(new WildcardQuery(new Term(field, (ignoreCase ? normalize(operation.getArg(0), s) : s))), Occur.MUST);
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bq.add(new WildcardQuery(new Term(field, s)), Occur.MUST);
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}
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return bq;
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}
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return new PrefixQuery(new Term(field, normalize(operation.getArg(0), terms[0])));
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return new PrefixQuery(new Term(field, terms[0]));
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}
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protected Query stringContains(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
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verifyArguments(operation);
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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String[] terms = createEscapedTerms(operation.getArg(1), tokenized, metadata);
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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String[] terms = convertEscaped(path, operation.getArg(1), metadata);
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if (terms.length > 1) {
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BooleanQuery bq = new BooleanQuery();
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for (String s : terms) {
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bq.add(new WildcardQuery(new Term(field, "*" + (ignoreCase ? normalize(operation.getArg(0), s) : s) + "*")), Occur.MUST);
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bq.add(new WildcardQuery(new Term(field, "*" + s + "*")), Occur.MUST);
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}
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return bq;
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}
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return new WildcardQuery(new Term(field, "*" + normalize(operation.getArg(0), terms[0]) + "*"));
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return new WildcardQuery(new Term(field, "*" + terms[0] + "*"));
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}
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protected Query endsWith(Operation<?> operation, QueryMetadata metadata, boolean ignoreCase) {
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verifyArguments(operation);
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String field = toField(operation.getArg(0));
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boolean tokenized = isTokenized(operation.getArg(0));
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String[] terms = createEscapedTerms(operation.getArg(1), tokenized, metadata);
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Path<?> path = getPath(operation.getArg(0));
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String field = toField(path);
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String[] terms = convertEscaped(path, operation.getArg(1), metadata);
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if (terms.length > 1) {
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BooleanQuery bq = new BooleanQuery();
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for (int i = 0; i < terms.length; ++i) {
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String s = i == terms.length - 1 ? "*" + terms[i] : "*" + terms[i] + "*";
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bq.add(new WildcardQuery(new Term(field, (ignoreCase ? normalize(operation.getArg(0), s) : s))), Occur.MUST);
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bq.add(new WildcardQuery(new Term(field, s)), Occur.MUST);
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}
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return bq;
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}
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return new WildcardQuery(new Term(field, "*" + normalize(operation.getArg(0), terms[0])));
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return new WildcardQuery(new Term(field, "*" + terms[0]));
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}
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protected Query between(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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Path<?> path = getPath(operation.getArg(0));
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// TODO Phrase not properly supported
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return range(
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operation.getArg(0),
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toField(operation.getArg(0)),
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path,
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toField(path),
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operation.getArg(1),
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operation.getArg(2),
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true,
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@ -300,9 +296,10 @@ public class LuceneSerializer {
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protected Query lt(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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Path<?> path = getPath(operation.getArg(0));
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return range(
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operation.getArg(0),
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toField(operation.getArg(0)),
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path,
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toField(path),
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null,
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operation.getArg(1),
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false,
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@ -312,9 +309,10 @@ public class LuceneSerializer {
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protected Query gt(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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Path<?> path = getPath(operation.getArg(0));
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return range(
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operation.getArg(0),
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toField(operation.getArg(0)),
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path,
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toField(path),
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operation.getArg(1),
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null,
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false,
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@ -324,9 +322,10 @@ public class LuceneSerializer {
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protected Query le(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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Path<?> path = getPath(operation.getArg(0));
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return range(
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operation.getArg(0),
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toField(operation.getArg(0)),
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path,
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toField(path),
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null,
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operation.getArg(1),
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true,
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@ -336,9 +335,10 @@ public class LuceneSerializer {
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protected Query ge(Operation<?> operation, QueryMetadata metadata) {
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verifyArguments(operation);
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Path<?> path = getPath(operation.getArg(0));
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return range(
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operation.getArg(0),
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toField(operation.getArg(0)),
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path,
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toField(path),
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operation.getArg(1),
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null,
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true,
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@ -347,7 +347,7 @@ public class LuceneSerializer {
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}
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@SuppressWarnings({"rawtypes", "unchecked"})
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protected Query range(Expression<?> expr, String field, @Nullable Expression<?> min, @Nullable Expression<?> max, boolean minInc, boolean maxInc, QueryMetadata metadata) {
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protected Query range(Path<?> leftHandSide, String field, @Nullable Expression<?> min, @Nullable Expression<?> max, boolean minInc, boolean maxInc, QueryMetadata metadata) {
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if (min != null && Number.class.isAssignableFrom(min.getType()) || max != null
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&& Number.class.isAssignableFrom(max.getType())) {
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Class<? extends Number> numType = (Class) (min != null ? min.getType() : max.getType());
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@ -355,7 +355,7 @@ public class LuceneSerializer {
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: ((Constant) min).getConstant()), (Number) (max == null ? null
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: ((Constant) max).getConstant()), minInc, maxInc);
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}
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return stringRange(expr, field, min, max, minInc, maxInc, metadata);
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return stringRange(leftHandSide, field, min, max, minInc, maxInc, metadata);
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}
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protected <N extends Number> NumericRangeQuery<?> numericRange(Class<N> clazz, String field,
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@ -377,7 +377,7 @@ public class LuceneSerializer {
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}
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protected Query stringRange(
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Expression<?> expr,
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Path<?> leftHandSide,
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String field,
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@Nullable Expression<?> min,
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@Nullable Expression<?> max,
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@ -387,30 +387,29 @@ public class LuceneSerializer {
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if (min == null) {
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return new TermRangeQuery(
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field, null, normalize(expr,
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createTerms(max, false, metadata)[0]), minInc, maxInc);
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field, null, convert(leftHandSide, max, metadata)[0], minInc, maxInc);
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} else if (max == null) {
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return new TermRangeQuery(
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field, normalize(expr, createTerms(min, false, metadata)[0]),
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field, convert(leftHandSide, min, metadata)[0],
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null, minInc, maxInc);
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} else {
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return new TermRangeQuery(
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field, normalize(expr, createTerms(min, false, metadata)[0]),
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normalize(expr, createTerms(max, false, metadata)[0]),
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field, convert(leftHandSide, min, metadata)[0],
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convert(leftHandSide, max, metadata)[0],
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minInc, maxInc);
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}
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}
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protected String toField(Expression<?> expr) {
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if (expr instanceof Path<?>) {
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return toField((Path<?>) expr);
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} else if (expr instanceof Operation<?>) {
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Operation<?> operation = (Operation<?>) expr;
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private Path<?> getPath(Expression<?> leftHandSide){
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if (leftHandSide instanceof Path<?>) {
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return (Path<?>)leftHandSide;
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} else if (leftHandSide instanceof Operation<?>) {
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Operation<?> operation = (Operation<?>) leftHandSide;
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if (operation.getOperator() == Ops.LOWER || operation.getOperator() == Ops.UPPER) {
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return toField(operation.getArg(0));
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return (Path<?>)operation.getArg(0);
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}
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}
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throw new IllegalArgumentException("Unable to transform " + expr + " to field");
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throw new IllegalArgumentException("Unable to transform " + leftHandSide + " to path");
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}
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/**
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@ -430,28 +429,6 @@ public class LuceneSerializer {
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return rv;
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}
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private boolean isTokenized(Expression<?> expr) {
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if (expr instanceof Path<?>) {
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return isTokenized((Path<?>) expr);
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} else if (expr instanceof Operation<?>) {
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Operation<?> operation = (Operation<?>) expr;
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if (operation.getOperator() == Ops.LOWER || operation.getOperator() == Ops.UPPER) {
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return isTokenized(operation.getArg(0));
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}
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}
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return splitTerms;
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}
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/**
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* Template method, override to customize.
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*
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* @param arg
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* @return
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*/
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protected boolean isTokenized(Path<?> arg) {
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return splitTerms;
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}
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private void verifyArguments(Operation<?> operation) {
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List<Expression<?>> arguments = operation.getArgs();
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for (int i = 1; i < arguments.size(); ++i) {
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@ -464,62 +441,46 @@ public class LuceneSerializer {
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}
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}
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}
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private String[] createTerms(Expression<?> expr, boolean tokenized, QueryMetadata metadata) {
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if (expr instanceof ParamExpression<?>){
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Object value = metadata.getParams().get(expr);
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if (value == null){
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throw new ParamNotSetException((ParamExpression<?>) expr);
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}
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return split(expr, tokenized, convert(expr, value));
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}else{
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return split(expr, tokenized, convert(expr, expr));
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}
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}
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/**
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* Template method, override to customize.
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*
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* @param object
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* @param value
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* template method
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*
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* @param leftHandSide
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* @param rightHandSide
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* @return
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*/
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protected String convert(Path<?> path, Object value){
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return value.toString();
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}
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private String convert(Expression<?> expr, Object value) {
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if (expr instanceof Path<?>) {
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return convert((Path<?>) expr, value);
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} else if (expr instanceof Operation<?>) {
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Operation<?> operation = (Operation<?>) expr;
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if (operation.getOperator() == Ops.LOWER || operation.getOperator() == Ops.UPPER) {
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return convert(operation.getArg(0), value);
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}
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}
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//TODO Or should this throw error or something?
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return value.toString();
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}
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private String[] createEscapedTerms(Expression<?> expr, boolean tokenized, QueryMetadata metadata) {
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if (expr instanceof ParamExpression<?>){
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Object value = metadata.getParams().get(expr);
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protected String[] convert(Path<?> leftHandSide, Expression<?> rightHandSide, QueryMetadata metadata) {
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if (rightHandSide instanceof PhraseElement) {
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return StringUtils.split(rightHandSide.toString());
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} else if (rightHandSide instanceof TermElement) {
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return new String[] { rightHandSide.toString() };
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} else if (rightHandSide instanceof ParamExpression<?>){
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Object value = metadata.getParams().get(rightHandSide);
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if (value == null){
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throw new ParamNotSetException((ParamExpression<?>) expr);
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throw new ParamNotSetException((ParamExpression<?>) rightHandSide);
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}
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return split(expr, tokenized, QueryParser.escape(convert(expr, value)));
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}else{
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return split(expr, tokenized, QueryParser.escape(convert(expr, expr)));
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return convert(leftHandSide, value);
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} else if (rightHandSide instanceof Constant<?>){
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return convert(leftHandSide, ((Constant<?>)rightHandSide).getConstant());
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} else {
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throw new IllegalArgumentException(rightHandSide.toString());
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}
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}
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protected String[] split(Expression<?> expr, boolean tokenized, String str) {
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if (expr instanceof PhraseElement) {
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return StringUtils.split(str);
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} else if (expr instanceof TermElement) {
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return new String[] { str };
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} else if (tokenized) {
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/**
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* template method
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*
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* @param leftHandSide
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* @param rightHandSide
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* @return
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*/
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protected String[] convert(Path<?> leftHandSide, Object rightHandSide) {
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String str = rightHandSide.toString();
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if (lowerCase){
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str = str.toLowerCase();
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}
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if (splitTerms) {
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if (str.equals("")) {
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return new String[] { str };
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} else {
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@ -529,29 +490,13 @@ public class LuceneSerializer {
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return new String[] { str };
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}
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}
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private String normalize(Expression<?> expr, String s) {
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if (expr instanceof Path<?>) {
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return normalize((Path<?>) expr, s);
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} else if (expr instanceof Operation<?>) {
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Operation<?> operation = (Operation<?>) expr;
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if (operation.getOperator() == Ops.LOWER || operation.getOperator() == Ops.UPPER) {
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return normalize(operation.getArg(0), s);
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}
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}
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//TODO Or should this throw error or something?
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return s;
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}
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/**
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* Template method, override to customize.
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*
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* @param
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* @return
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*/
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protected String normalize(Path<?> path, String s) {
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return lowerCase ? s.toLowerCase(Locale.ENGLISH) : s;
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private String[] convertEscaped(Path<?> leftHandSide, Expression<?> rightHandSide, QueryMetadata metadata) {
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String[] str = convert(leftHandSide, rightHandSide, metadata);
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for (int i = 0; i < str.length; i++){
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str[i] = QueryParser.escape(str[i]);
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}
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return str;
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}
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public Query toQuery(Expression<?> expr, QueryMetadata metadata) {
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@ -572,10 +517,11 @@ public class LuceneSerializer {
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}
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Class<?> type = order.getTarget().getType();
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boolean reverse = !order.isAscending();
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Path<?> path = getPath(order.getTarget());
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if (Number.class.isAssignableFrom(type)) {
|
||||
sorts.add(new SortField(toField(order.getTarget()), sortFields.get(type), reverse));
|
||||
sorts.add(new SortField(toField(path), sortFields.get(type), reverse));
|
||||
} else {
|
||||
sorts.add(new SortField(toField(order.getTarget()), Locale.ENGLISH, reverse));
|
||||
sorts.add(new SortField(toField(path), Locale.ENGLISH, reverse));
|
||||
}
|
||||
}
|
||||
Sort sort = new Sort();
|
||||
|
||||
@ -41,4 +41,5 @@ public class PhraseElement extends StringExpression{
|
||||
public int hashCode(){
|
||||
return string.hashCode();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -228,8 +228,8 @@ public class LuceneSerializerTest {
|
||||
}
|
||||
|
||||
@Test
|
||||
public void Equals_Finds_Nothing_When_Case_Does_Not_Match() throws Exception {
|
||||
testQuery(title.eq("Jurassic"), "title:Jurassic", 0);
|
||||
public void Equals_Ignores_Case() throws Exception {
|
||||
testQuery(title.eq("Jurassic"), "title:jurassic", 1);
|
||||
}
|
||||
|
||||
@Test
|
||||
@ -387,7 +387,9 @@ public class LuceneSerializerTest {
|
||||
}
|
||||
|
||||
@Test
|
||||
public void between_Phrase_does_not_work() throws Exception {
|
||||
@Ignore
|
||||
public void between_Phrase() throws Exception {
|
||||
// FIXME
|
||||
testQuery(title.between("Jurassic Park", "Kundun"), "title:[jurassic park TO kundun]", 0);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user