+/*
+ * Copyright 2005-2011 the original author or authors.
+ *
+ * Licensed 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.
+ */
package org.wamblee.xmlrouter.impl;
import java.util.logging.Level;
import org.wamblee.xmlrouter.common.Id;
import org.wamblee.xmlrouter.config.Transformation;
+/**
+ * This class provides robustness towards externally provided transformations.
+ *
+ * @author Erik Brakkee
+ *
+ */
public class RobustTransformation implements Transformation {
private static final Logger LOGGER = Logger
private Id<Transformation> id;
private Transformation transformation;
+ /**
+ * Constructs the wrapper.
+ *
+ * @param aId
+ * Unique id.
+ * @param aTransformation
+ * Wrapped transformation.
+ */
public RobustTransformation(Id<Transformation> aId,
Transformation aTransformation) {
id = aId;
transformation = aTransformation;
}
+ @Override
+ public String getName() {
+ try {
+ String name = transformation.getName();
+ if (name == null) {
+ logTypeReturnedNull("from");
+ return Constants.UNKNOWN_DOCUMENT_TYPE.toString();
+ }
+ return name;
+ } catch (Exception e) {
+ logNameThrewException(e);
+ return Constants.UNKNOWN_DOCUMENT_TYPE.toString();
+ }
+ }
+
@Override
public String getFromType() {
try {
}
}
+ private void logNameThrewException(Exception aE) {
+ LOGGER.log(Level.WARNING, "getName" +
+ " threw exception, returning default value " +
+ Constants.UNKNOWN_NAME, aE);
+ }
+
private void logTypeThrewException(String aFromTo, Exception aE) {
LOGGER.log(Level.WARNING, "get" + aFromTo +
" threw exception, returning default value " +