org.apache.hadoop.gateway.topology.Topology.java Source code

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Here is the source code for org.apache.hadoop.gateway.topology.Topology.java

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/**
 * 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.hadoop.gateway.topology;

import org.apache.commons.collections.map.HashedMap;
import org.apache.commons.collections.map.MultiKeyMap;

import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Topology {

    private URI uri;
    private String name;
    private long timestamp;
    public List<Provider> providerList = new ArrayList<Provider>();
    private Map<String, Map<String, Provider>> providerMap = new HashMap<>();
    public List<Service> services = new ArrayList<Service>();
    private MultiKeyMap serviceMap;
    private List<Application> applications = new ArrayList<Application>();
    private Map<String, Application> applicationMap = new HashMap<>();

    public Topology() {
        serviceMap = MultiKeyMap.decorate(new HashedMap());
    }

    public URI getUri() {
        return uri;
    }

    public void setUri(URI uri) {
        this.uri = uri;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public long getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(long timestamp) {
        this.timestamp = timestamp;
    }

    public Collection<Service> getServices() {
        return services;
    }

    public Service getService(String role, String name, Version version) {
        return (Service) serviceMap.get(role, name, version);
    }

    public void addService(Service service) {
        services.add(service);
        serviceMap.put(service.getRole(), service.getName(), service.getVersion(), service);
    }

    public Collection<Application> getApplications() {
        return applications;
    }

    private static String fixApplicationUrl(String url) {
        if (url == null) {
            url = "/";
        }
        if (!url.startsWith("/")) {
            url = "/" + url;
        }
        return url;
    }

    public Application getApplication(String url) {
        return applicationMap.get(fixApplicationUrl(url));
    }

    public void addApplication(Application application) {
        applications.add(application);
        List<String> urls = application.getUrls();
        if (urls == null || urls.isEmpty()) {
            applicationMap.put(fixApplicationUrl(application.getName()), application);
        } else {
            for (String url : application.getUrls()) {
                applicationMap.put(fixApplicationUrl(url), application);
            }
        }
    }

    public Collection<Provider> getProviders() {
        return providerList;
    }

    public Provider getProvider(String role, String name) {
        Provider provider = null;
        Map<String, Provider> nameMap = providerMap.get(role);
        if (nameMap != null) {
            if (name != null) {
                provider = nameMap.get(name);
            } else {
                provider = (Provider) nameMap.values().toArray()[0];
            }
        }
        return provider;
    }

    public void addProvider(Provider provider) {
        providerList.add(provider);
        String role = provider.getRole();
        Map<String, Provider> nameMap = providerMap.get(role);
        if (nameMap == null) {
            nameMap = new HashMap<>();
            providerMap.put(role, nameMap);
        }
        nameMap.put(provider.getName(), provider);
    }

}