| /** |
| * 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. |
| */ |
| package org.apache.camel.builder; |
| |
| import java.util.Arrays; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Expression; |
| import org.apache.camel.Processor; |
| |
| /** |
| * A builder of a number of different {@link Processor} implementations |
| * |
| * @version |
| */ |
| public final class ProcessorBuilder { |
| |
| /** |
| * Utility classes should not have a public constructor. |
| */ |
| private ProcessorBuilder() { |
| } |
| |
| /** |
| * Creates a processor which sets the body of the IN message to the value of the expression |
| */ |
| public static Processor setBody(final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object newBody = expression.evaluate(exchange, Object.class); |
| exchange.getIn().setBody(newBody); |
| } |
| |
| @Override |
| public String toString() { |
| return "setBody(" + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Creates a processor which sets the body of the OUT message to the value of the expression |
| */ |
| public static Processor setOutBody(final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object newBody = expression.evaluate(exchange, Object.class); |
| exchange.getOut().setBody(newBody); |
| } |
| |
| @Override |
| public String toString() { |
| return "setOutBody(" + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Creates a processor which sets the body of the FAULT message to the value of the expression |
| */ |
| public static Processor setFaultBody(final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object newBody = expression.evaluate(exchange, Object.class); |
| exchange.getOut().setFault(true); |
| exchange.getOut().setBody(newBody); |
| } |
| |
| @Override |
| public String toString() { |
| return "setFaultBody(" + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Sets the header on the IN message |
| */ |
| public static Processor setHeader(final String name, final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object value = expression.evaluate(exchange, Object.class); |
| exchange.getIn().setHeader(name, value); |
| } |
| |
| @Override |
| public String toString() { |
| return "setHeader(" + name + ", " + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Sets the header on the OUT message |
| */ |
| public static Processor setOutHeader(final String name, final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object value = expression.evaluate(exchange, Object.class); |
| exchange.getOut().setHeader(name, value); |
| } |
| |
| @Override |
| public String toString() { |
| return "setOutHeader(" + name + ", " + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Sets the header on the FAULT message |
| */ |
| public static Processor setFaultHeader(final String name, final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object value = expression.evaluate(exchange, Object.class); |
| exchange.getOut().setFault(true); |
| exchange.getOut().setHeader(name, value); |
| } |
| |
| @Override |
| public String toString() { |
| return "setFaultHeader(" + name + ", " + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Sets the property on the exchange |
| */ |
| public static Processor setProperty(final String name, final Expression expression) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| Object value = expression.evaluate(exchange, Object.class); |
| exchange.setProperty(name, value); |
| } |
| |
| @Override |
| public String toString() { |
| return "setProperty(" + name + ", " + expression + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Removes the header on the IN message |
| */ |
| public static Processor removeHeader(final String name) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().removeHeader(name); |
| } |
| |
| @Override |
| public String toString() { |
| return "removeHeader(" + name + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Removes the headers on the IN message |
| */ |
| public static Processor removeHeaders(final String pattern) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().removeHeaders(pattern); |
| } |
| |
| @Override |
| public String toString() { |
| return "removeHeaders(" + pattern + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Removes all headers on the IN message, except for the ones provided in the <tt>names</tt> parameter |
| */ |
| public static Processor removeHeaders(final String pattern, final String... exceptionPatterns) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().removeHeaders(pattern, exceptionPatterns); |
| } |
| |
| @Override |
| public String toString() { |
| return "removeHeaders(" + pattern + ", " + Arrays.toString(exceptionPatterns) + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Removes the header on the FAULT message |
| * @deprecated will be removed in the near future. Instead use {@link #removeHeader(String)} |
| */ |
| @Deprecated |
| public static Processor removeFaultHeader(final String name) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getOut().setFault(true); |
| exchange.getOut().removeHeader(name); |
| } |
| |
| @Override |
| public String toString() { |
| return "removeFaultHeader(" + name + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Removes the property on the exchange |
| */ |
| public static Processor removeProperty(final String name) { |
| return new Processor() { |
| public void process(Exchange exchange) { |
| exchange.removeProperty(name); |
| } |
| |
| @Override |
| public String toString() { |
| return "removeProperty(" + name + ")"; |
| } |
| }; |
| } |
| |
| /** |
| * Throws an exception |
| */ |
| public static Processor throwException(final Exception ex) { |
| return new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| throw ex; |
| } |
| |
| @Override |
| public String toString() { |
| return "throwException(" + ex.toString() + ")"; |
| } |
| }; |
| } |
| } |