/**
* Copyright (c) 2005-2010, 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.apache.synapse.message.processor.impl.forwarder;
import java.util.Date;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.engine.AxisConfiguration;
import org.apache.axis2.transport.http.HTTPConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.ManagedLifecycle;
import org.apache.synapse.Mediator;
import org.apache.synapse.MessageContext;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.SynapseException;
import org.apache.synapse.commons.json.JsonUtil;
import org.apache.synapse.core.SynapseEnvironment;
import org.apache.synapse.core.axis2.Axis2MessageContext;
import org.apache.synapse.endpoints.AbstractEndpoint;
import org.apache.synapse.endpoints.Endpoint;
import org.apache.synapse.endpoints.EndpointDefinition;
import org.apache.synapse.message.MessageConsumer;
import org.apache.synapse.message.processor.MessageProcessor;
import org.apache.synapse.message.processor.MessageProcessorConstants;
import org.apache.synapse.message.processor.impl.ScheduledMessageProcessor;
import org.apache.synapse.message.senders.blocking.BlockingMsgSender;
import org.apache.synapse.task.Task;
import org.apache.synapse.util.MessageHelper;
/**
* This task is responsible for forwarding a request to a given endpoint. This
* is based on a blocking implementation and can send only one message at a
* time. Also this supports Throttling and reliable messaging.
*
*/
public class ForwardingService implements Task, ManagedLifecycle {
private static final Log log = LogFactory.getLog(ForwardingService.class);
// The consumer that is associated with the particular message store
private MessageConsumer messageConsumer;
// Owner of the this job
private MessageProcessor messageProcessor;
// This is the client which sends messages to the end point
private BlockingMsgSender sender;
/*
* Interval between two retries to the client. This only come to affect only
* if the client is un-reachable
*/
private int retryInterval = 1000;
// Sequence to invoke in a failure
private String faultSeq = null;
// Sequence to reply on success
private String replySeq = null;
// Sequence to invoke in a message processor deactivation
private String deactivateSeq = null;
private String targetEndpoint = null;
/*
* The cron expression under which the message processor runs.
*/
private String cronExpression = null;
/*
* This is specially used for REST scenarios where http status codes can
* take semantics in a RESTful architecture.
*/
private String[] nonRetryStatusCodes = null;
/*
* These two maintain the state of service. For each iteration these should
* be reset
*/
private boolean isSuccessful = false;
private volatile boolean isTerminated = false;
/*
* Number of retries before shutting-down the processor. -1 value
* indicates that
* retry should happen forever
*/
private int maxDeliverAttempts = 4;
private int attemptCount = 0;
private boolean isThrottling = true;
/**
* Throttling-interval is the forwarding interval when cron scheduling is enabled.
*/
private long throttlingInterval = -1;
// Message Queue polling interval value.
private long interval;
/*
* Configuration to continue the message processor even without stopping
* the message processor after maximum number of delivery
*/
private boolean isMaxDeliveryAttemptDropEnabled = false;
private SynapseEnvironment synapseEnvironment;
private boolean initialized = false;
/**
* Specifies whether the service should be started as deactivated or not
*/
private boolean isDeactivatedAtStartup= false;
private boolean isNonHTTP = false;
Pattern httpPattern = Pattern.compile("^(http|https):");
public ForwardingService(MessageProcessor messageProcessor, BlockingMsgSender sender,
SynapseEnvironment synapseEnvironment, long threshouldInterval) {
this.messageProcessor = messageProcessor;
this.sender = sender;
this.synapseEnvironment = synapseEnvironment;
// Initializes the interval to the Threshould interval value.
this.interval = threshouldInterval;
}
public ForwardingService(MessageProcessor messageProcessor, BlockingMsgSender sender,
SynapseEnvironment synapseEnvironment, long threshouldInterval,
boolean isDeactivatedAtStartup ) {
this.messageProcessor = messageProcessor;
this.sender = sender;
this.synapseEnvironment = synapseEnvironment;
this.interval = threshouldInterval;
this.isDeactivatedAtStartup = isDeactivatedAtStartup;
}
/**
* Starts the execution of this task which grabs a message from the message
* queue and dispatch it to a given endpoint.
*/
public void execute() {
final long startTime = new Date().getTime();
if(isDeactivatedAtStartup){
//This delay is required until tasks are paused from ScheduledMessageProcessor since message processor is
// inactive
try {
TimeUnit.MILLISECONDS.sleep(MessageProcessorConstants.INITIAL_EXECUTION_DELAY);
} catch (InterruptedException exception) {
log.warn("Initial delay interrupted when Forwarding service started as inactive ", exception);
}
isDeactivatedAtStartup = false;
}
/*
* Initialize only if it is NOT already done. This will make sure that
* the initialization is done only once.
*/
if (!initialized) {
this.init(synapseEnvironment);
}
do {
resetService();
MessageContext messageContext = null;
try {
if (!this.messageProcessor.isDeactivated()) {
messageContext = fetch(messageConsumer);
if (messageContext != null) {
Set proSet = messageContext.getPropertyKeySet();
if (proSet != null) {
if (proSet.contains(ForwardingProcessorConstants.BLOCKING_SENDER_ERROR)) {
proSet.remove(ForwardingProcessorConstants.BLOCKING_SENDER_ERROR);
}
}
// Now it is NOT terminated anymore.
isTerminated = messageProcessor.isDeactivated();
dispatch(messageContext);
} else {
// either the connection is broken or there are no new
// massages.
if (log.isDebugEnabled()) {
log.debug("No messages were received for message processor [" +
messageProcessor.getName() + "]");
}
// this means we have consumed all the messages
if (isRunningUnderCronExpression()) {
break;
}
}
} else {
/*
* we need this because when start the server while the
* processors in deactivated mode
* the deactivation may not come in to play because the
* service may not be running.
*/
isTerminated = true;
if (log.isDebugEnabled()) {
log.debug("Exiting service since the message processor is deactivated");
}
}
} catch (Throwable e) {
/*
* All the possible recoverable exceptions are handles case by
* case and yet if it comes this
* we have to shutdown the processor
*/
log.fatal("Deactivating the message processor [" + this.messageProcessor.getName() +
"]", e);
deactivateMessageProcessor(messageContext);
}
if (log.isDebugEnabled()) {
log.debug("Exiting the iteration of message processor [" +
this.messageProcessor.getName() + "]");
}
/*
* This code wrote handle scenarios in which cron expressions are
* used for scheduling task
*/
if (isRunningUnderCronExpression()) {
try {
Thread.sleep(throttlingInterval);
} catch (InterruptedException e) {
// no need to worry. it does have any serious consequences
log.debug("Current Thread was interrupted while it is sleeping.");
}
}
/*
* If the interval is less than 1000 ms, then the scheduling is done
* using the while loop since ntask rejects any intervals whose
* value is less then 1000 ms. Cron expressions are handled above so
* we need to skip it here. Otherwise the cron expression is kept
* sleeping twice as the forwarding interval.
*/
if (interval > 0 && interval < MessageProcessorConstants.THRESHOULD_INTERVAL &&
!isRunningUnderCronExpression()) {
try {
Thread.sleep(interval);
} catch (InterruptedException e) {
log.debug("Current Thread was interrupted while it is sleeping.");
}
}
/*
* Gives the control back to Quartz scheduler. This needs to be done
* only if the interval value is less than the Threshould interval
* value of 1000 ms, where the scheduling is done outside of Quartz
* via the while loop. Otherwise the schedular will get blocked.
* For cron expressions with interval < 1000ms this scenario is not
* applicable hence skipping it here. For cron expressions, all the
* messages in the queue at the moment are sent to the backend. If
* you give control back to the Quartz that behavior can not be
* achieved, only a portion of the messages will get dispatched
* while other messages will remain in the queue.
*/
if (isThrottling && new Date().getTime() - startTime > 1000 &&
!isRunningUnderCronExpression()) {
break;
}
} while ((isThrottling || isRunningUnderCronExpression()) && !isTerminated);
if (log.isDebugEnabled()) {
log.debug("Exiting service thread of message processor [" +
this.messageProcessor.getName() + "]");
}
}
/**
* Helper method to get a value of a parameters in the AxisConfiguration
*
* @param axisConfiguration AxisConfiguration instance
* @param paramKey The name / key of the parameter
* @return The value of the parameter
*/
private static String getAxis2ParameterValue(AxisConfiguration axisConfiguration,
String paramKey) {
Parameter parameter = axisConfiguration.getParameter(paramKey);
if (parameter == null) {
return null;
}
Object value = parameter.getValue();
if (value != null && value instanceof String) {
return (String) parameter.getValue();
} else {
return null;
}
}
public void init(SynapseEnvironment se) {
// Setting up the JMS consumer here.
setMessageConsumer();
// Defaults to -1.
Map<String, Object> parametersMap = messageProcessor.getParameters();
if (parametersMap.get(MessageProcessorConstants.MAX_DELIVER_ATTEMPTS) != null) {
maxDeliverAttempts =
Integer.parseInt((String) parametersMap.get(MessageProcessorConstants.MAX_DELIVER_ATTEMPTS));
}
if (parametersMap.get(MessageProcessorConstants.RETRY_INTERVAL) != null) {
retryInterval =
Integer.parseInt((String) parametersMap.get(MessageProcessorConstants.RETRY_INTERVAL));
}
replySeq = (String) parametersMap.get(ForwardingProcessorConstants.REPLY_SEQUENCE);
faultSeq = (String) parametersMap.get(ForwardingProcessorConstants.FAULT_SEQUENCE);
deactivateSeq = (String) parametersMap.get(ForwardingProcessorConstants.DEACTIVATE_SEQUENCE);
targetEndpoint = (String) parametersMap.get(ForwardingProcessorConstants.TARGET_ENDPOINT);
// Default value should be true.
if (parametersMap.get(ForwardingProcessorConstants.THROTTLE) != null) {
isThrottling =
Boolean.parseBoolean((String) parametersMap.get(ForwardingProcessorConstants.THROTTLE));
}
if (parametersMap.get(ForwardingProcessorConstants.CRON_EXPRESSION) != null) {
cronExpression =
String.valueOf(parametersMap.get(ForwardingProcessorConstants.CRON_EXPRESSION));
}
// Default Value should be -1.
if (cronExpression != null &&
parametersMap.get(ForwardingProcessorConstants.THROTTLE_INTERVAL) != null) {
throttlingInterval =
Long.parseLong((String) parametersMap.get(ForwardingProcessorConstants.THROTTLE_INTERVAL));
}
nonRetryStatusCodes =
(String[]) parametersMap.get(ForwardingProcessorConstants.NON_RETRY_STATUS_CODES);
// Default to FALSE.
if (parametersMap.get(ForwardingProcessorConstants.MAX_DELIVERY_DROP) != null &&
parametersMap.get(ForwardingProcessorConstants.MAX_DELIVERY_DROP).toString()
.equals("Enabled") && maxDeliverAttempts > 0) {
isMaxDeliveryAttemptDropEnabled = true;
}
// Setting the interval value.
interval = Long.parseLong((String) parametersMap.get(MessageProcessorConstants.INTERVAL));
/*
* Make sure to set the isInitialized flag to TRUE in order to avoid
* re-initialization.
*/
initialized = true;
}
private Set<Integer> getNonRetryStatusCodes() {
Set<Integer>nonRetryCodes = new HashSet<Integer>();
if (nonRetryStatusCodes != null) {
for (String code : nonRetryStatusCodes) {
try {
int codeI = Integer.parseInt(code.trim());
nonRetryCodes.add(codeI);
} catch (NumberFormatException e) {
} // ignore the invalid status code
}
}
return nonRetryCodes;
}
/**
* Receives the next message from the message store.
*
* @param msgConsumer
* message consumer
* @return {@link MessageContext} of the last message received from the
* store.
*/
public MessageContext fetch(MessageConsumer msgConsumer) {
return messageConsumer.receive();
}
/**
* Sends the mesage to a given endpoint.
*
* @param messageContext
* synapse {@link MessageContext} to be sent
*/
public void dispatch(MessageContext messageContext) {
if (log.isDebugEnabled()) {
log.debug("Sending the message to client with message processor [" +
messageProcessor.getName() + "]");
}
// The below code is just for keeping the backward compatibility with
// the old code.
if (targetEndpoint == null) {
targetEndpoint =
(String) messageContext.getProperty(ForwardingProcessorConstants.TARGET_ENDPOINT);
}
MessageContext outCtx = null;
SOAPEnvelope originalEnvelop = messageContext.getEnvelope();
if (targetEndpoint != null) {
Endpoint ep = messageContext.getEndpoint(targetEndpoint);
AbstractEndpoint abstractEndpoint = (AbstractEndpoint) ep;
EndpointDefinition endpointDefinition = abstractEndpoint.getDefinition();
String endpointReferenceValue = null;
if (endpointDefinition.getAddress() != null) {
endpointReferenceValue = endpointDefinition.getAddress();
isNonHTTP = !isHTTPEndPoint(endpointReferenceValue);
}
try {
// Send message to the client
while (!isSuccessful && !isTerminated) {
try {
// For each retry we need to have a fresh copy of the
// actual message. otherwise retry may not
// work as expected.
messageContext.setEnvelope(MessageHelper.cloneSOAPEnvelope(originalEnvelop));
OMElement firstChild = null; //
org.apache.axis2.context.MessageContext origAxis2Ctx =
((Axis2MessageContext) messageContext).getAxis2MessageContext();
if (JsonUtil.hasAJsonPayload(origAxis2Ctx)) {
firstChild = origAxis2Ctx.getEnvelope().getBody().getFirstElement();
} // Had to do this because
// MessageHelper#cloneSOAPEnvelope does not clone
// OMSourcedElemImpl correctly.
if (JsonUtil.hasAJsonPayload(firstChild)) { //
OMElement clonedFirstElement =
messageContext.getEnvelope().getBody()
.getFirstElement();
if (clonedFirstElement != null) {
clonedFirstElement.detach();
messageContext.getEnvelope().getBody().addChild(firstChild);
}
}// Had to do this because
// MessageHelper#cloneSOAPEnvelope does not clone
// OMSourcedElemImpl correctly.
origAxis2Ctx.setProperty(HTTPConstants.NON_ERROR_HTTP_STATUS_CODES,
getNonRetryStatusCodes());
if (messageConsumer != null && messageConsumer.isAlive()) {
outCtx = sender.send(ep, messageContext);
}
if (isNonHTTP) {
/*
* There is no status codes to deal with JMS eps. So
* merely set it as a success if there's no any
* exceptions.
*/
isSuccessful = true;
} else {
String responseSc =
((String) ((Axis2MessageContext) messageContext).getAxis2MessageContext()
.getProperty(SynapseConstants.HTTP_SC));
// Some events where response code is null (i.e. sender socket timeout
// when there is no response from endpoint)
int sc;
try {
sc = Integer.parseInt(responseSc.trim());
isSuccessful =
getHTTPStatusCodeFamily(sc).equals(
HTTPStatusCodeFamily.SUCCESSFUL) ||
isNonRetryErrorCode(responseSc);
} catch (NumberFormatException nfe) {
isSuccessful = false;
}
}
} catch (Exception e) {
// this means send has failed due to some reason so we
// have to retry it
/*
* If an exception is thrown in a JMS scenario then we
* have to consider it as a failure.
*/
if (isNonHTTP) {
isSuccessful = false;
} else if (outCtx != null && "true".equals(outCtx.getProperty(
ForwardingProcessorConstants.BLOCKING_SENDER_ERROR))) {
isSuccessful = false;
} else {
if (e instanceof SynapseException) {
String responseSc =
((String) ((Axis2MessageContext) messageContext).getAxis2MessageContext()
.getProperty(SynapseConstants.HTTP_SC));
// We can come to this exception where sender has
// not responded, in which case there is no SC - we can't guarantee
// if send was successful or not in such cases other than those
// handled above.
int sc;
try {
sc = Integer.parseInt(responseSc.trim());
isSuccessful =
getHTTPStatusCodeFamily(sc).equals(
HTTPStatusCodeFamily.SUCCESSFUL) ||
isNonRetryErrorCode(responseSc);
} catch (NumberFormatException nfe) {
isSuccessful = false;
}
}
}
if (!isSuccessful) {
log.error("BlockingMessageSender of message processor [" +
this.messageProcessor.getName() +
"] failed to send message to the endpoint");
// Some Error has occurred while having out only
// operation. Try to send the to fault sequence,
// since
// outCtx is null passing the messageContext
sendThroughFaultSeq(messageContext);
}
}
if (outCtx != null) {
if (isSuccessful) {
sendThroughReplySeq(outCtx);
messageConsumer.ack();
attemptCount = 0;
isSuccessful = true;
if (log.isDebugEnabled()) {
log.debug("Successfully sent the message to endpoint [" +
ep.getName() + "]" + " with message processor [" +
messageProcessor.getName() + "]");
}
} else {
// This means some error has occurred so
// must try to send down the fault sequence.
log.error("BlockingMessageSender of message processor [" +
this.messageProcessor.getName() +
"] failed to send message to the endpoint");
sendThroughFaultSeq(outCtx);
}
} else {
if (isSuccessful) {
// This Means we have invoked an out only operation
// remove the message and reset the count
messageConsumer.ack();
attemptCount = 0;
isSuccessful = true;
if (log.isDebugEnabled()) {
log.debug("Successfully sent the message to endpoint [" +
ep.getName() + "]" + " with message processor [" +
messageProcessor.getName() + "]");
}
} else {
// This means some error has occurred.
log.error("BlockingMessageSender of message processor [" +
this.messageProcessor.getName() +
"] failed to send message to the endpoint");
}
}
if (!isSuccessful) {
// Then we have to retry sending the message to the
// client.
prepareToRetry(messageContext);
}
}
} catch (Exception e) {
log.error("Message processor [" + messageProcessor.getName() +
"] failed to send the message to" + " client", e);
}
} else {
/*
* No Target Endpoint defined for the Message So we do not have a
* place to deliver.
* Here we log a warning and remove the message todo: we can improve
* this by implementing a target inferring
* mechanism.
*/
log.warn("Property " + ForwardingProcessorConstants.TARGET_ENDPOINT +
" not found in the message context , Hence removing the message ");
messageConsumer.ack();
}
return;
}
/**
* Sending the out message through the fault sequence.
*
* @param msgCtx
* Synapse {@link MessageContext} to be sent through the fault
* sequence.
*/
public void sendThroughFaultSeq(MessageContext msgCtx) {
if (faultSeq == null) {
log.warn("Failed to send the message through the fault sequence. Sequence name does not Exist.");
return;
}
Mediator mediator = msgCtx.getSequence(faultSeq);
if (mediator == null) {
log.warn("Failed to send the message through the fault sequence. Sequence [" +
faultSeq + "] does not Exist.");
return;
}
mediator.mediate(msgCtx);
}
/**
* Sending the out message through the deactivate sequence.
*
* @param msgCtx Synapse {@link MessageContext} to be sent through the deactivate
* sequence.
*/
public void sendThroughDeactivateSeq(MessageContext msgCtx) {
if (deactivateSeq == null) {
log.warn("Failed to send the message through the deactivate sequence. Sequence name does not Exist.");
return;
}
Mediator mediator = msgCtx.getSequence(deactivateSeq);
if (mediator == null) {
log.warn("Failed to send the message through the deactivate sequence. Sequence [" +
deactivateSeq + "] does not Exist.");
return;
}
mediator.mediate(msgCtx);
}
/**
* Sending the out message through the reply sequence.
*
* @param outCtx
* Synapse out {@link MessageContext} to be sent through the
* reply sequence.
*/
public void sendThroughReplySeq(MessageContext outCtx) {
if (replySeq == null) {
deactivateMessageProcessor(outCtx);
log.error("Failed to send the out message. Reply sequence does not Exist. Deactivated the message processor");
return;
}
Mediator mediator = outCtx.getSequence(replySeq);
if (mediator == null) {
deactivateMessageProcessor(outCtx);
log.error("Failed to send the out message. Reply sequence [" + replySeq +
"] does not exist. Deactivated the message processor");
return;
}
mediator.mediate(outCtx);
}
/**
* Terminates the job of the message processor.
*
* @return <code>true</code> if the job is terminated successfully,
* <code>false</code> otherwise.
*/
public boolean terminate() {
try {
isTerminated = true;
// Thread.currentThread().interrupt();
if (log.isDebugEnabled()) {
log.debug("Successfully terminated job of message processor [" +
messageProcessor.getName() + "]");
}
return true;
} catch (Exception e) {
log.error("Failed to terminate the job of message processor [" +
messageProcessor.getName() + "]");
return false;
}
}
/*
* If the max delivery attempt is reached, this will deactivate the message
* processor. If the MaxDeliveryAttemptDrop is Enabled, then the message is
* dropped and the message processor continues.
*/
private void checkAndDeactivateProcessor(MessageContext msgCtx) {
if (maxDeliverAttempts > 0) {
this.attemptCount++;
if (attemptCount >= maxDeliverAttempts) {
if (this.isMaxDeliveryAttemptDropEnabled) {
dropMessageAndContinueMessageProcessor();
if (log.isDebugEnabled()) {
log.debug("Message processor [" + messageProcessor.getName() +
"] Dropped the failed message and continue due to reach of max attempts");
}
} else {
terminate();
deactivateMessageProcessor(msgCtx);
if (log.isDebugEnabled()) {
log.debug("Message processor [" + messageProcessor.getName() +
"] stopped due to reach of max attempts");
}
}
}
}
}
/*
* Prepares the message processor for the next retry of delivery.
*/
private void prepareToRetry(MessageContext msgCtx) {
if (!isTerminated) {
checkAndDeactivateProcessor(msgCtx);
if (log.isDebugEnabled()) {
log.debug("Failed to send to client retrying after " + retryInterval +
"s with attempt count - " + attemptCount);
}
try {
// wait for some time before retrying
Thread.sleep(retryInterval);
} catch (InterruptedException ignore) {
// No harm even it gets interrupted. So nothing to handle.
}
}
}
private void deactivateMessageProcessor(MessageContext messageContext) {
sendThroughDeactivateSeq(messageContext);
this.messageProcessor.deactivate();
}
private void resetService() {
isSuccessful = false;
attemptCount = 0;
}
private boolean isNonRetryErrorCode(final String responseHttpSc) {
boolean isNonRetryErrCode = false;
for (String nonretrySc : nonRetryStatusCodes) {
if (nonretrySc.trim().contains(responseHttpSc.trim())) {
isNonRetryErrCode = true;
break;
}
}
return isNonRetryErrCode;
}
private boolean isRunningUnderCronExpression() {
return (cronExpression != null) && (throttlingInterval > -1);
}
private void dropMessageAndContinueMessageProcessor() {
messageConsumer.ack();
attemptCount = 0;
isSuccessful = true;
log.info("Removed failed message and continue the message processor [" +
this.messageProcessor.getName() + "]");
}
private boolean setMessageConsumer() {
final String messageStore = messageProcessor.getMessageStoreName();
messageConsumer =
synapseEnvironment.getSynapseConfiguration()
.getMessageStore(messageStore).getConsumer();
/*
* If Message Processor is deactivated via Advanced params, then we need
* to cleanup the JMS consumers here. Ideally a deactivated MP should
* not have any active JMS consumers.
*/
if (!((ScheduledMessageProcessor) messageProcessor).getIsActivatedParamValue()) {
messageConsumer.cleanup();
}
/*
* Make sure to set the same message consumer in the message processor
* since it is used by life-cycle management methods. Specially by the
* deactivate method to cleanup the connection before the deactivation.
*/
return messageProcessor.setMessageConsumer(messageConsumer);
}
/**
* Checks whether this TaskService is properly initialized or not.
*
* @return <code>true</code> if this TaskService is properly initialized.
* <code>false</code> otherwise.
*/
public boolean isInitialized() {
return initialized;
}
public void destroy() {
terminate();
}
private boolean isHTTPEndPoint(String epAddress) {
Matcher match = httpPattern.matcher(epAddress);
return match.find();
}
/**
* + * Used to determine the family of HTTP status codes to which the given
* code
* + * belongs.
* + *
* + * @param statusCode - The HTTP status code
* +
*/
private HTTPStatusCodeFamily getHTTPStatusCodeFamily(int statusCode) {
switch (statusCode / 100) {
case 1:
return HTTPStatusCodeFamily.INFORMATIONAL;
case 2:
return HTTPStatusCodeFamily.SUCCESSFUL;
case 3:
return HTTPStatusCodeFamily.REDIRECTION;
case 4:
return HTTPStatusCodeFamily.CLIENT_ERROR;
case 5:
return HTTPStatusCodeFamily.SERVER_ERROR;
default:
return HTTPStatusCodeFamily.OTHER;
}
}
/**
* The set of HTTP status code families.
*/
private enum HTTPStatusCodeFamily {
INFORMATIONAL, SUCCESSFUL, REDIRECTION, CLIENT_ERROR, SERVER_ERROR, OTHER
}
}