/**
* Copyright 2010 JBoss Inc
*
* 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.drools.io.impl;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.util.Collection;
import org.drools.io.Resource;
import org.drools.io.internal.InternalResource;
public class EncodedResource extends BaseResource implements InternalResource {
private final InternalResource resource;
private final String encoding;
/**
* Create a new EncodedResource for the given Resource,
* not specifying a specific encoding.
* @param resource the Resource to hold
*/
public EncodedResource(Resource resource) {
this(resource, null);
}
/**
* Create a new EncodedResource for the given Resource,
* using the specified encoding.
* @param resource the Resource to hold
* @param encoding the encoding to use for reading from the resource
*/
public EncodedResource(Resource resource, String encoding) {
if ( resource == null ) {
throw new IllegalArgumentException( "resource cannot be null" );
}
this.resource = (InternalResource) resource;
this.encoding = encoding;
}
public URL getURL() throws IOException {
return this.resource.getURL();
}
public boolean hasURL() {
return this.resource.hasURL();
}
/**
* Return the Resource held.
*/
public final Resource getResource() {
return this.resource;
}
/**
* Return the encoding to use for reading from the resource,
* or <code>null</code> if none specified.
*/
public final String getEncoding() {
return this.encoding;
}
/**
* Open a <code>java.io.Reader</code> for the specified resource,
* using the specified encoding (if any).
* @throws IOException if opening the Reader failed
*/
public Reader getReader() throws IOException {
if (this.encoding != null) {
return new InputStreamReader(this.resource.getInputStream(), this.encoding);
}
else {
return new InputStreamReader(this.resource.getInputStream());
}
}
public InputStream getInputStream() throws IOException {
return this.resource.getInputStream();
}
public long getLastModified() {
return this.resource.getLastModified();
}
public long getLastRead() {
return this.resource.getLastRead();
}
public boolean isDirectory() {
return this.resource.isDirectory();
}
public Collection<Resource> listResources() {
return this.resource.listResources();
}
public String toString() {
return "[EncodedResource resource=" + this.resource + " encoding='" + this.encoding + "']";
}
}