/*
* 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.geode.internal.cache.tier.sockets.command;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.apache.geode.cache.client.internal.ExecuteFunctionOp;
import org.apache.geode.cache.execute.Execution;
import org.apache.geode.cache.execute.Function;
import org.apache.geode.cache.execute.internal.FunctionServiceManager;
import org.apache.geode.distributed.DistributedMember;
import org.apache.geode.distributed.DistributedSystem;
import org.apache.geode.distributed.internal.InternalDistributedSystem;
import org.apache.geode.internal.cache.execute.AbstractExecution;
import org.apache.geode.internal.cache.execute.MemberFunctionExecutor;
import org.apache.geode.internal.cache.execute.ServerToClientFunctionResultSender;
import org.apache.geode.internal.cache.tier.Command;
import org.apache.geode.internal.cache.tier.sockets.Message;
import org.apache.geode.internal.cache.tier.sockets.Part;
import org.apache.geode.internal.cache.tier.sockets.ServerConnection;
import org.apache.geode.internal.i18n.LocalizedStrings;
/**
*
*/
public class ExecuteFunction70 extends ExecuteFunction66 {
private static final ExecuteFunction70 singleton = new ExecuteFunction70();
public static Command getCommand() {
return singleton;
}
private ExecuteFunction70() {}
@Override
public void cmdExecute(Message msg, ServerConnection servConn, long start) throws IOException {
super.cmdExecute(msg, servConn, start);
}
@Override
protected String[] getGroups(Message msg) throws IOException, ClassNotFoundException {
String[] grp = null;
Part p = msg.getPart(4);
if (p != null) {
grp = (String[]) p.getObject();
}
return grp;
}
@Override
protected boolean getIgnoreFailedMembers(Message msg) {
return isFlagSet(msg, ExecuteFunctionOp.IGNORE_FAILED_MEMBERS_INDEX);
}
@Override
protected boolean getAllMembers(Message msg) {
return isFlagSet(msg, ExecuteFunctionOp.ALL_MEMBERS_INDEX);
}
private boolean isFlagSet(Message msg, int index) {
boolean isSet = false;
byte[] flags = null;
Part p = msg.getPart(5);
if (p != null) {
flags = p.getSerializedForm();
if (flags != null && flags.length > index) {
if (flags[index] == 1) {
isSet = true;
}
}
}
return isSet;
}
@Override
protected void executeFunctionOnGroups(Object function, Object args, String[] groups,
boolean allMembers, Function functionObject, ServerToClientFunctionResultSender resultSender,
boolean ignoreFailedMembers) {
DistributedSystem ds = InternalDistributedSystem.getConnectedInstance();
if (ds == null) {
throw new IllegalStateException(
LocalizedStrings.ExecuteFunction_DS_NOT_CREATED_OR_NOT_READY.toLocalizedString());
}
Set<DistributedMember> members = new HashSet<DistributedMember>();
for (String group : groups) {
if (allMembers) {
members.addAll(ds.getGroupMembers(group));
} else {
ArrayList<DistributedMember> memberList =
new ArrayList<DistributedMember>(ds.getGroupMembers(group));
if (!memberList.isEmpty()) {
if (!FunctionServiceManager.RANDOM_onMember
&& memberList.contains(ds.getDistributedMember())) {
members.add(ds.getDistributedMember());
} else {
Collections.shuffle(memberList);
members.add(memberList.get(0));
}
}
}
}
if (logger.isDebugEnabled()) {
logger.debug("Executing Function on Groups: {} all members: {} members are: {}",
Arrays.toString(groups), allMembers, members);
}
Execution execution = new MemberFunctionExecutor(ds, members, resultSender);
if (args != null) {
execution = execution.withArgs(args);
}
if (ignoreFailedMembers) {
if (logger.isDebugEnabled()) {
logger.debug("Function will ignore failed members");
}
((AbstractExecution) execution).setIgnoreDepartedMembers(true);
}
if (!functionObject.isHA()) {
((AbstractExecution) execution).setWaitOnExceptionFlag(true);
}
if (function instanceof String) {
execution.execute(functionObject.getId()).getResult();
} else {
execution.execute(functionObject).getResult();
}
}
}