/**
 *  Copyright 2005-2015 Red Hat, Inc.
 *
 *  Red Hat 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 io.fabric8.camel;

import org.apache.camel.Endpoint;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.util.URISupport;

import java.util.Map;

/**
 * The MASTER camel component ensures that only a single endpoint in a cluster is active at any
 * point in time with all other JVMs being hot standbys which wait until the master JVM dies before
 * taking over to provide high availability of a single consumer.
 */
public class MasterComponent extends ZKComponentSupport {
    private String zkRoot = "/fabric/registry/clusters/camel/master";

    public String getZkRoot() {
        return zkRoot;
    }

    public void setZkRoot(String zkRoot) {
        this.zkRoot = zkRoot;
    }

    //  Implementation methods
    //-------------------------------------------------------------------------


    @Override
    protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> params) throws Exception {
        int idx = remaining.indexOf(':');
        if (idx <= 0) {
            throw new IllegalArgumentException("Missing : in URI so can't split the group name from the actual URI for '" + remaining + "'");
        }
        // we are registering a regular endpoint
        String name = remaining.substring(0, idx);
        String childUri = remaining.substring(idx + 1);
        // we need to apply the params here
        if (params != null && params.size() > 0) {
            childUri = childUri + "?" + URISupport.createQueryString(params);
        }
        return new MasterEndpoint(uri, this, name, childUri);
    }

    protected String getFabricPath(String name) {
        String path = name;
        if (ObjectHelper.isNotEmpty(zkRoot)) {
            path = zkRoot + "/" + name;
        }
        return path;
    }

}
