/* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package org.apache.sling.resource.filter.impl; | |
import java.io.ByteArrayInputStream; | |
import java.util.Map; | |
import java.util.function.Predicate; | |
import org.apache.sling.api.resource.Resource; | |
import org.apache.sling.resource.filter.ResourcePredicates; | |
import org.apache.sling.resource.filter.impl.node.Node; | |
import org.apache.sling.resource.filter.impl.script.FilterParser; | |
import org.apache.sling.resource.filter.impl.script.ParseException; | |
import org.osgi.service.component.annotations.Component; | |
@Component | |
public class ResourcePredicateImpl implements ResourcePredicates { | |
@Override | |
public Predicate<Resource> parse(String filter) { | |
return new ResourcePredicateBuilderImpl().parse(filter); | |
} | |
@Override | |
public Predicate<Resource> parse(String filter, String charEncoding) { | |
return new ResourcePredicateBuilderImpl().parse(filter, charEncoding); | |
} | |
@Override | |
public ResourcePredicateBuilder withParameters(Map<String, Object> params) { | |
return new ResourcePredicateBuilderImpl().withParameters(params); | |
} | |
@Override | |
public ResourcePredicateBuilder withParameter(String key, Object value) { | |
return new ResourcePredicateBuilderImpl().withParameter(key, value); | |
} | |
@Override | |
public ResourcePredicateBuilder usingParameterMap(Map<String, Object> params) { | |
return new ResourcePredicateBuilderImpl().usingParameterMap(params); | |
} | |
public static class ResourcePredicateBuilderImpl implements ResourcePredicateBuilder { | |
private Context context; | |
private ResourcePredicateBuilderImpl() { | |
context = new DefaultContext(); | |
new LogicVisitor(context); | |
new ComparisonVisitor(context); | |
} | |
@Override | |
public Predicate<Resource> parse(String filter) { | |
Node rootNode; | |
try { | |
rootNode = new FilterParser(new ByteArrayInputStream(filter.getBytes())).parse(); | |
return rootNode.accept(context.getLogicVisitor()); | |
} catch (ParseException e) { | |
throw new IllegalArgumentException(e); | |
} | |
} | |
@Override | |
public Predicate<Resource> parse(String filter, String charEncoding) { | |
Node rootNode; | |
try { | |
rootNode = new FilterParser(new ByteArrayInputStream(filter.getBytes()), charEncoding).parse(); | |
return rootNode.accept(context.getLogicVisitor()); | |
} catch (ParseException e) { | |
throw new IllegalArgumentException(e); | |
} | |
} | |
@Override | |
public ResourcePredicateBuilder withParameters(Map<String, Object> params) { | |
context.addParameters(params); | |
return this; | |
} | |
@Override | |
public ResourcePredicateBuilder withParameter(String key, Object value) { | |
context.addArgument(key, value); | |
return this; | |
} | |
@Override | |
public ResourcePredicateBuilder usingParameterMap(Map<String, Object> params) { | |
context.replaceParameterMap(params); | |
return this; | |
} | |
} | |
} |