defrac.intellij.project.DefracProjectUtil.java Source code

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Here is the source code for defrac.intellij.project.DefracProjectUtil.java

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/*
 * Copyright 2014 defrac inc.
 *
 * 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 defrac.intellij.project;

import com.google.common.collect.Sets;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.projectRoots.Sdk;
import com.intellij.openapi.roots.ProjectRootManager;
import com.intellij.openapi.util.Condition;
import com.intellij.openapi.vfs.VirtualFile;
import defrac.intellij.DefracPlatform;
import defrac.intellij.facet.DefracFacet;
import defrac.intellij.util.Names;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Set;

/**
 *
 */
public final class DefracProjectUtil {
    @Contract("null -> false")
    public static boolean isDefracProject(@Nullable final Project project) {
        if (project == null) {
            return false;
        }

        final VirtualFile settingsFile = project.getBaseDir().findChild(Names.default_settings);

        return settingsFile != null && settingsFile.exists();
    }

    @Nullable
    @Contract("null -> null")
    public static Sdk getProjectSdk(@Nullable final Project project) {
        return project == null ? null : ProjectRootManager.getInstance(project).getProjectSdk();
    }

    @NotNull
    public static Module[] findModulesForPlatform(@Nullable final Project project,
            @NotNull final DefracPlatform platform, @Nullable final Condition<Module> condition) {
        if (project == null) {
            return Module.EMPTY_ARRAY;
        }

        final Module[] modules = ModuleManager.getInstance(project).getModules();
        final Set<Module> platformModules = Sets
                .newHashSetWithExpectedSize(modules.length / (DefracPlatform.values().length));

        for (final Module module : modules) {
            final DefracFacet facet = DefracFacet.getInstance(module);

            if (facet == null || facet.getPlatform() != platform) {
                continue;
            }

            if (condition != null && !condition.value(module)) {
                continue;
            }

            platformModules.add(module);
        }

        return platformModules.toArray(new Module[platformModules.size()]);
    }

    private DefracProjectUtil() {
    }
}