/
JmsMessageUtils.java
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/
JmsMessageUtils.java
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/*
* Copyright (c) 2019, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.wso2.ei.b7a.jms;
import org.ballerinalang.jvm.util.exceptions.BallerinaException;
import org.ballerinalang.jvm.values.ArrayValue;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import java.util.Collections;
import java.util.List;
/**
* Representation of {@link javax.jms.Message} with utility methods to invoke as inter-op functions.
*/
public class JmsMessageUtils {
private JmsMessageUtils() {}
/**
* Check whether {@link javax.jms.Message} is {@link javax.jms.TextMessage}
*
* @param message {@link javax.jms.Message} object
* @return true/false based on the evaluation
*/
public static boolean isTextMessage(Message message) {
return message instanceof TextMessage;
}
/**
* Check whether {@link javax.jms.Message} is {@link javax.jms.MapMessage}
*
* @param message {@link javax.jms.Message} object
* @return true/false based on the evaluation
*/
public static boolean isMapMessage(Message message) {
return message instanceof MapMessage;
}
/**
* Check whether {@link javax.jms.Message} is {@link javax.jms.BytesMessage}
*
* @param message {@link javax.jms.Message} object
* @return true/false based on the evaluation
*/
public static boolean isBytesMessage(Message message) {
return message instanceof BytesMessage;
}
/**
* Check whether {@link javax.jms.Message} is {@link javax.jms.StreamMessage}
*
* @param message {@link javax.jms.Message} object
* @return true/false based on the evaluation
*/
public static boolean isStreamMessage(Message message) {
return message instanceof StreamMessage;
}
/**
* Return all property names in the {@link javax.jms.MapMessage} as Ballerina array
*
* @param message {@link javax.jms.Message} object
* @return Ballerina array consist of property names
* @throws BallerinaException throw a RuntimeException in an error situation
*/
//TODO: Fix this workaround when Ballerina lang support to return primitive array and error as a union type
public static ArrayValue getJmsPropertyNames(Message message) {
try {
List<String> propertyNames = Collections.list(message.getPropertyNames());
return new ArrayValue(propertyNames.toArray(new String[0]));
} catch (JMSException e) {
throw new BallerinaException("Error occurred while getting property names.", e);
}
}
public static ArrayValue getJMSCorrelationIDAsBytes(Message message) {
try {
MapMessage m = (MapMessage) message;
return new ArrayValue(m.getJMSCorrelationIDAsBytes());
} catch (JMSException e) {
throw new BallerinaException("Error occurred while getting property names.", e);
}
}
/**
* Set the JMS correlation id value as an array of byte
*
* @param message {@link javax.jms.Message} object
* @param value correlation id value as an array of byte
* @throws BallerinaJmsException in an error situation
*/
public static void setJMSCorrelationIDAsBytes(Message message, ArrayValue value) throws BallerinaJmsException {
try {
byte[] correlationId = value.getBytes();
message.setJMSCorrelationIDAsBytes(correlationId);
} catch (JMSException e) {
throw new BallerinaJmsException("Error occurred while setting correlationId value " +
"as an array of bytes", e);
}
}
}