01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.components.source.impl;
18:
19: import java.io.IOException;
20: import java.net.MalformedURLException;
21: import java.util.Map;
22:
23: import org.apache.avalon.framework.logger.AbstractLogEnabled;
24: import org.apache.avalon.framework.thread.ThreadSafe;
25: import org.apache.excalibur.source.Source;
26: import org.apache.excalibur.source.SourceFactory;
27:
28: /**
29: * A factory for 'empty:' sources (see {@link EmptySource}).
30: *
31: * @version $Id: EmptySourceFactory.java 433543 2006-08-22 06:22:54Z crossley $
32: * @since 2.1.8
33: */
34: public class EmptySourceFactory extends AbstractLogEnabled implements
35: SourceFactory, ThreadSafe {
36:
37: /**
38: * Get an {@link EmptySource} object.
39: *
40: * @param location The URI to resolve - this URI includes the scheme.
41: * @param parameters this is optional and not used here
42: *
43: * @see org.apache.excalibur.source.SourceFactory#getSource(java.lang.String, java.util.Map)
44: */
45: public Source getSource(String location, Map parameters)
46: throws IOException, MalformedURLException {
47: return new EmptySource(location);
48: }
49:
50: /**
51: * @see org.apache.excalibur.source.SourceFactory#release(org.apache.excalibur.source.Source)
52: */
53: public void release(Source source) {
54: // Do nothing here
55: }
56: }
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