/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.management.request;
import com.eclipsesource.json.JsonArray;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;
import com.hazelcast.core.Member;
import com.hazelcast.management.ManagementCenterService;
import com.hazelcast.management.operation.ScriptExecutorOperation;
import com.hazelcast.nio.Address;
import com.hazelcast.util.AddressUtil;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static com.hazelcast.util.JsonUtil.getArray;
import static com.hazelcast.util.JsonUtil.getBoolean;
import static com.hazelcast.util.JsonUtil.getString;
/**
* Request for executing scripts on the nodes from Management Center.
*/
public class ExecuteScriptRequest implements ConsoleRequest {
private String script;
private String engine;
private Set<String> targets;
private boolean targetAllMembers;
private Map<String, Object> bindings;
public ExecuteScriptRequest() {
}
public ExecuteScriptRequest(String script, String engine,
boolean targetAllMembers, Map<String, Object> bindings) {
this.script = script;
this.engine = engine;
this.targets = new HashSet<String>(0);
this.targetAllMembers = targetAllMembers;
this.bindings = bindings;
}
public ExecuteScriptRequest(String script, String engine,
Set<String> targets, Map<String, Object> bindings) {
this.script = script;
this.targets = targets;
this.engine = engine;
this.targetAllMembers = false;
this.bindings = bindings;
}
@Override
public int getType() {
return ConsoleRequestConstants.REQUEST_TYPE_EXECUTE_SCRIPT;
}
@Override
public void writeResponse(ManagementCenterService mcs, JsonObject root) throws Exception {
final JsonObject jsonResult = new JsonObject();
ArrayList results;
if (targetAllMembers) {
final Set<Member> members = mcs.getHazelcastInstance().getCluster().getMembers();
final ArrayList list = new ArrayList(members.size());
for (Member member : members) {
list.add(mcs.callOnMember(member, new ScriptExecutorOperation(engine, script, bindings)));
}
results = list;
} else {
final ArrayList list = new ArrayList(targets.size());
for (String address : targets) {
final AddressUtil.AddressHolder addressHolder = AddressUtil.getAddressHolder(address);
final Address targetAddress = new Address(addressHolder.getAddress(), addressHolder.getPort());
list.add(mcs.callOnAddress(targetAddress, new ScriptExecutorOperation(engine, script, bindings)));
}
results = list;
}
StringBuffer sb = new StringBuffer();
for (Object result : results) {
if (result instanceof String) {
sb.append(result);
} else if (result instanceof List) {
final List list = (List) result;
for (Object o : list) {
sb.append(o).append("\n");
}
} else if (result instanceof Map) {
final Map map = (Map) result;
for (Object o : map.entrySet()) {
final Map.Entry entry = (Map.Entry) o;
sb.append(entry.getKey()).append("->").append(entry.getValue()).append("\n");
}
} else if (result == null) {
sb.append("error");
}
sb.append("\n");
}
jsonResult.add("scriptResult", sb.toString());
root.add("result", jsonResult);
}
@Override
public Object readResponse(JsonObject json) throws IOException {
return getString(json, "scriptResult", "Error while reading response " + ExecuteScriptRequest.class.getName());
}
@Override
public JsonObject toJson() {
final JsonObject root = new JsonObject();
root.add("script", script);
root.add("engine", engine);
JsonArray jsonTargets = new JsonArray();
for (String target : targets) {
jsonTargets.add(target);
}
root.add("targets", jsonTargets);
root.add("targetAllMembers", targetAllMembers);
return root;
}
@Override
public void fromJson(JsonObject json) {
script = getString(json, "script", "");
engine = getString(json, "engine", "");
targets = new HashSet<String>();
for (JsonValue target : getArray(json, "targets", new JsonArray())) {
targets.add(target.asString());
}
targetAllMembers = getBoolean(json, "targetAllMembers", false);
bindings = new HashMap<String, Object>();
}
}