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.template.script.event;
18:
19: import org.apache.cocoon.components.expression.ExpressionContext;
20: import org.apache.cocoon.template.environment.ExecutionContext;
21: import org.apache.cocoon.template.instruction.MacroContext;
22: import org.apache.cocoon.xml.XMLConsumer;
23: import org.xml.sax.Locator;
24: import org.xml.sax.SAXException;
25: import org.xml.sax.helpers.LocatorImpl;
26:
27: /**
28: * @version $Id: Event.java 449189 2006-09-23 06:52:29Z crossley $
29: */
30: public class Event {
31:
32: protected final Locator location;
33: protected Event next; // in document order
34:
35: public static final Locator NULL_LOCATOR = new LocatorImpl();
36:
37: public Event(Locator locator) {
38: this .location = locator != null ? new LocatorImpl(locator)
39: : NULL_LOCATOR;
40: }
41:
42: public final Locator getLocation() {
43: return location;
44: }
45:
46: public Event getNext() {
47: return next;
48: }
49:
50: public void setNext(Event next) {
51: this .next = next;
52: }
53:
54: public String locationString() {
55: StringBuffer buf = new StringBuffer();
56: buf.append(location.getSystemId());
57: if (buf.length() > 0) {
58: buf.append(", ");
59: }
60: buf.append("Line " + location.getLineNumber());
61: int col = location.getColumnNumber();
62: if (col > 0) {
63: buf.append("." + col);
64: }
65: return buf.toString();
66: }
67:
68: public Event execute(final XMLConsumer consumer,
69: ExpressionContext expressionContext,
70: ExecutionContext executionContext,
71: MacroContext macroContext, Event startEvent, Event endEvent)
72: throws SAXException {
73: return getNext();
74: }
75: }
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