/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.resourcemerger.impl;
import java.util.List;
import org.apache.sling.api.resource.AbstractResource;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceMetadata;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ValueMap;
import org.apache.sling.api.wrappers.DeepReadValueMapDecorator;
/**
* {@inheritDoc}
*/
public class MergedResource extends AbstractResource {
/** The resource resolver. */
private final ResourceResolver resolver;
/** Full path of the resource. */
private final String path;
/** Resource type. */
private final String resourceType;
/** Resource meta data. */
private final ResourceMetadata metadata = new ResourceMetadata();
/** Cache value map. */
private final ValueMap properties;
/**
* Constructor
*
* @param resolver Resource resolver
* @param mergeRootPath Merge root path
* @param relativePath Relative path
* @param mappedResources List of physical mapped resources' paths
*/
MergedResource(final ResourceResolver resolver,
final String mergeRootPath,
final String relativePath,
final List<Resource> mappedResources,
final List<ValueMap> valueMaps) {
this.resolver = resolver;
this.path = (relativePath.length() == 0 ? mergeRootPath : mergeRootPath + "/" + relativePath);
this.properties = new DeepReadValueMapDecorator(this, new MergedValueMap(valueMaps));
this.resourceType = this.properties.get(ResourceResolver.PROPERTY_RESOURCE_TYPE, (relativePath.length() == 0 ? "/" : relativePath));
metadata.put(MergedResourceConstants.METADATA_FLAG, true);
final String[] resourcePaths = new String[mappedResources.size()];
int i = 0;
for(final Resource rsrc : mappedResources) {
resourcePaths[i] = rsrc.getPath();
i++;
}
metadata.put(MergedResourceConstants.METADATA_RESOURCES, resourcePaths);
}
/**
* {@inheritDoc}
*/
public String getPath() {
return this.path;
}
/**
* {@inheritDoc}
*/
public String getResourceType() {
return this.resourceType;
}
/**
* {@inheritDoc}
*/
public String getResourceSuperType() {
// So far, there's no concept of resource super type for a merged resource
return null;
}
/**
* {@inheritDoc}
*/
public ResourceMetadata getResourceMetadata() {
return metadata;
}
/**
* {@inheritDoc}
*/
public ResourceResolver getResourceResolver() {
return resolver;
}
/**
* {@inheritDoc}
*/
@Override
@SuppressWarnings("unchecked")
public <AdapterType> AdapterType adaptTo(final Class<AdapterType> type) {
if (type == ValueMap.class) {
return (AdapterType) this.properties;
}
return super.adaptTo(type);
}
// ---- Object ------------------------------------------------------------
/**
* Merged resources are considered equal if their paths are equal,
* regardless of the list of mapped resources.
*
* @param o Object to compare with
* @return Returns <code>true</code> if the two merged resources have the
* same path.
*/
@Override
public boolean equals(final Object o) {
if (o == null) {
return false;
}
if (o == this) {
return true;
}
if (o.getClass() != getClass()) {
return false;
}
final Resource r = (Resource) o;
return r.getPath().equals(getPath());
}
@Override
public int hashCode() {
return this.getPath().hashCode();
}
@Override
public String toString() {
return "MergedResource [path=" + this.path +
", resources=" + this.metadata.get(MergedResourceConstants.METADATA_RESOURCES) + "]";
}
}