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: * @version $Id: ExpandJXPathBindingBuilder.java 517733 2007-03-13 15:37:22Z vgritsenko $
28: */
29: public class ExpandJXPathBindingBuilder extends
30: JXPathBindingBuilderBase {
31:
32: /**
33: * @see JXPathBindingBuilderBase#buildBinding(Element, JXPathBindingManager.Assistant)
34: */
35: public JXPathBindingBase buildBinding(Element bindingElm,
36: Assistant assistant) throws BindingException {
37:
38: Library lib = assistant.getContext().getLocalLibrary();
39:
40: String id = DomHelper.getAttribute(bindingElm, "id", null);
41: if (id == null) {
42: throw new BindingException("Attribute id is required",
43: DomHelper.getLocationObject(bindingElm));
44: }
45:
46: try {
47: return (JXPathBindingBase) lib.getBinding(id);
48: } catch (LibraryException e) {
49: throw new BindingException(
50: "Could not expand binding from library", e,
51: DomHelper.getLocationObject(bindingElm));
52: }
53: }
54: }
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