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.forms.binding;
18:
19: import org.apache.cocoon.forms.binding.JXPathBindingManager.Assistant;
20: import org.apache.cocoon.forms.binding.library.Library;
21: import org.apache.cocoon.forms.binding.library.LibraryException;
22: import org.apache.cocoon.forms.util.DomHelper;
23:
24: import org.w3c.dom.Element;
25:
26: /**
27: * Handles binding library imports
28: *
29: * @version $Id: ImportJXPathBindingBuilder.java 517733 2007-03-13 15:37:22Z vgritsenko $
30: */
31: public class ImportJXPathBindingBuilder extends
32: JXPathBindingBuilderBase {
33:
34: /**
35: * @see JXPathBindingBuilderBase#buildBinding(Element, JXPathBindingManager.Assistant)
36: */
37: public JXPathBindingBase buildBinding(Element bindingElm,
38: Assistant assistant) throws BindingException {
39: Library lib = assistant.getContext().getLocalLibrary();
40:
41: String prefix = DomHelper.getAttribute(bindingElm, "prefix",
42: null);
43: String uri = DomHelper.getAttribute(bindingElm, "uri", null);
44: if (prefix == null || uri == null) {
45: throw new BindingException(
46: "Import needs to specify both @uri and @prefix!",
47: DomHelper.getLocationObject(bindingElm));
48: }
49:
50: try {
51: lib.includeAs(prefix, uri);
52: } catch (LibraryException e) {
53: throw new BindingException("Could not import library", e,
54: DomHelper.getLocationObject(bindingElm));
55: }
56:
57: return new ImportJXPathBinding();
58: }
59: }
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