com.android.tools.idea.structure.services.DeveloperServices.java Source code

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Here is the source code for com.android.tools.idea.structure.services.DeveloperServices.java

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/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.android.tools.idea.structure.services;

import com.google.common.base.Predicate;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Iterables;
import com.google.common.collect.Multimap;
import com.intellij.ProjectTopics;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.ModuleListener;
import com.intellij.openapi.project.Project;
import com.intellij.util.messages.MessageBusConnection;
import org.jetbrains.annotations.NotNull;

import static com.android.tools.idea.structure.services.BuildSystemOperationsLookup.getBuildSystemOperations;

/**
 * Helper class which collects developer services from all plugins and provides a simple
 * interface to access them.
 */
public final class DeveloperServices {

    private static final Logger LOG = Logger.getInstance(DeveloperService.class);

    private static Multimap<Module, DeveloperService> ourServices = ArrayListMultimap.create();

    public static Iterable<DeveloperService> getAll(@NotNull Module module) {
        initializeFor(module);
        return ourServices.get(module);
    }

    @NotNull
    public static Iterable<DeveloperService> getFor(@NotNull Module module, final ServiceCategory category) {
        return Iterables.filter(getAll(module), new Predicate<DeveloperService>() {
            @Override
            public boolean apply(DeveloperService service) {
                return service.getCategory() == category;
            }
        });
    }

    private static void initializeFor(@NotNull final Module module) {
        if (ourServices.containsKey(module)) {
            return;
        }

        for (DeveloperServiceCreators creators : DeveloperServiceCreators.EP_NAME.getExtensions()) {
            try {
                for (DeveloperServiceCreator creator : creators.getCreators()) {
                    DeveloperService service = creator.createService(module);
                    if (service != null) {
                        ourServices.put(module, service);
                    }
                }
            } catch (Exception e) {
                LOG.warn("Caught exception while initializing services", e);
            }
        }

        getBuildSystemOperations(module.getProject()).initializeServices(module, new Runnable() {
            @Override
            public void run() {
                for (DeveloperService service : ourServices.get(module)) {
                    service.updateInstalledState();
                }
            }
        });

        MessageBusConnection connection = module.getMessageBus().connect(module);
        connection.subscribe(ProjectTopics.MODULES, new ModuleListener() {
            @Override
            public void moduleRemoved(@NotNull Project project, @NotNull Module moduleRemoved) {
                if (module == moduleRemoved) {
                    ourServices.removeAll(module);
                }
            }
        });
    }
}