/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.river.routing;
import com.google.common.collect.ImmutableMap;
import org.elasticsearch.common.collect.MapBuilder;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.river.RiverName;
import java.io.IOException;
import java.util.Iterator;
/**
*
*/
public class RiversRouting implements Iterable<RiverRouting> {
public static final RiversRouting EMPTY = RiversRouting.builder().build();
private final ImmutableMap<RiverName, RiverRouting> rivers;
private RiversRouting(ImmutableMap<RiverName, RiverRouting> rivers) {
this.rivers = rivers;
}
public boolean isEmpty() {
return rivers.isEmpty();
}
public RiverRouting routing(RiverName riverName) {
return rivers.get(riverName);
}
public boolean hasRiverByName(String name) {
for (RiverName riverName : rivers.keySet()) {
if (riverName.name().equals(name)) {
return true;
}
}
return false;
}
@Override
public Iterator<RiverRouting> iterator() {
return rivers.values().iterator();
}
public static Builder builder() {
return new Builder();
}
public static class Builder {
private MapBuilder<RiverName, RiverRouting> rivers = MapBuilder.newMapBuilder();
public Builder routing(RiversRouting routing) {
rivers.putAll(routing.rivers);
return this;
}
public Builder put(RiverRouting routing) {
rivers.put(routing.riverName(), routing);
return this;
}
public Builder remove(RiverRouting routing) {
rivers.remove(routing.riverName());
return this;
}
public Builder remove(RiverName riverName) {
rivers.remove(riverName);
return this;
}
public Builder remote(String riverName) {
for (RiverName name : rivers.map().keySet()) {
if (name.name().equals(riverName)) {
rivers.remove(name);
}
}
return this;
}
public RiversRouting build() {
return new RiversRouting(rivers.immutableMap());
}
public static RiversRouting readFrom(StreamInput in) throws IOException {
Builder builder = new Builder();
int size = in.readVInt();
for (int i = 0; i < size; i++) {
builder.put(RiverRouting.readRiverRouting(in));
}
return builder.build();
}
public static void writeTo(RiversRouting routing, StreamOutput out) throws IOException {
out.writeVInt(routing.rivers.size());
for (RiverRouting riverRouting : routing) {
riverRouting.writeTo(out);
}
}
}
}