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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.logging;
-
- import java.util.List;
- import java.util.ListIterator;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.fop.layoutmgr.ElementListObserver.Observer;
- import org.apache.fop.layoutmgr.ElementListUtils;
- import org.apache.fop.layoutmgr.ListElement;
-
- /**
- * <p>Logs all observed element lists.
- * </p>
- * <p>You can enable/disabled individual categories separately, for example for JDK 1.4 logging:
- * </p>
- * <p>org.apache.fop.logging.LoggingElementListObserver.level = INFO</p>
- * <p>org.apache.fop.logging.LoggingElementListObserver.table-cell.level = FINE</p>
- */
- public class LoggingElementListObserver implements Observer {
-
- /** @see org.apache.fop.layoutmgr.ElementListObserver.Observer */
- public void observe(List elementList, String category, String id) {
- Log log = LogFactory.getLog(LoggingElementListObserver.class.getName() + "." + category);
- if (!log.isDebugEnabled()) {
- return;
- }
- log.debug(" ");
- int len = (elementList != null ? ElementListUtils.calcContentLength(elementList) : 0);
- log.debug("ElementList: category=" + category + ", id=" + id + ", len=" + len + "mpt");
- if (elementList == null) {
- log.debug("<<empty list>>");
- return;
- }
- ListIterator tempIter = elementList.listIterator();
- ListElement temp;
- while (tempIter.hasNext()) {
- temp = (ListElement) tempIter.next();
- if (temp.isBox()) {
- log.debug(tempIter.previousIndex()
- + ") " + temp);
- } else if (temp.isGlue()) {
- log.debug(tempIter.previousIndex()
- + ") " + temp);
- } else {
- log.debug(tempIter.previousIndex()
- + ") " + temp);
- }
- if (temp.getPosition() != null) {
- log.debug(" " + temp.getPosition());
- }
- }
- log.debug(" ");
- }
-
- }
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