/* | |
* 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.ResourceFilter; | |
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; | |
public class ResourceFilterImpl implements ResourceFilter { | |
private Context context; | |
/* | |
* (non-Javadoc) | |
* | |
* @see org.apache.sling.resource.filter.ResourceFilterStream#getContext() | |
*/ | |
public Context getContext() { | |
if (context == null) { | |
context = new DefaultContext(); | |
new LogicVisitor(context); | |
new ComparisonVisitor(context); | |
} | |
return context; | |
} | |
/* | |
* (non-Javadoc) | |
* | |
* @see | |
* org.apache.sling.resource.filter.ResourceFilterStream#setContext(org.apache.sling. | |
* resource.filter.impl.Context) | |
*/ | |
public ResourceFilter setContext(Context context) { | |
this.context = context; | |
return this; | |
} | |
@Override | |
public Predicate<Resource> parse(String filter) { | |
Node rootNode; | |
try { | |
rootNode = new FilterParser(new ByteArrayInputStream(filter.getBytes())).parse(); | |
return rootNode.accept(getContext().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(getContext().getLogicVisitor()); | |
} catch (ParseException e) { | |
throw new IllegalArgumentException(e); | |
} | |
} | |
@Override | |
public ResourceFilter addParams(Map<String, Object> params) { | |
getContext().addParams(params); | |
return this; | |
} | |
@Override | |
public ResourceFilter addParam(String key, Object value) { | |
getContext().addArgument(key, value); | |
return this; | |
} | |
} |