com.github.caofangkun.bazelipse.command.IdeBuildInfo.java Source code

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// Copyright 2016 The Bazel Authors. All rights reserved.
//
// 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.github.caofangkun.bazelipse.command;

import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;
import java.util.Objects;

import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONTokener;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

/**
 * A parsed version of the JSON files returned by the application of the IDE build information
 * aspect.
 */
public final class IdeBuildInfo {

    /**
     * A structure containing the list of jar files generated by a target (interface, class and source
     * jars).
     */
    public static final class Jars {
        private final String ijar; // interface_jar
        private final String jar; // jar
        private final String srcjar; // source_jar

        Jars(JSONObject obj) {
            this.ijar = obj.has("interface_jar") ? obj.getString("interface_jar") : null;
            this.jar = obj.getString("jar");
            this.srcjar = obj.has("srcjar") ? obj.getString("srcjar") : null;
        }

        @Override
        public int hashCode() {
            return Objects.hash(ijar, jar, srcjar);
        }

        public String getInterfaceJar() {
            return ijar;
        }

        public String getJar() {
            return jar;
        }

        public String getSrcJar() {
            return srcjar;
        }
    }

    private final String location; // build_file_artifact_location
    private final ImmutableList<String> deps; // dependencies
    private final String kind; // kind
    private final String label; // label

    private final ImmutableList<Jars> generatedJars; // generated_jars
    private final ImmutableList<Jars> jars; // jars
    private final ImmutableList<String> sources; // sources

    /**
     * Construct an {@link IdeBuildInfo} object from a {@link JSONObject}.
     */
    IdeBuildInfo(JSONObject object) {
        jars = jsonToJarArray(object.getJSONArray("jars"));
        generatedJars = jsonToJarArray(object.getJSONArray("generated_jars"));
        location = object.getString("build_file_artifact_location");
        kind = object.getString("kind");
        label = object.getString("label");
        this.deps = jsonToStringArray(object.getJSONArray("dependencies"));
        this.sources = jsonToStringArray(object.getJSONArray("sources"));
    }

    /**
     * Constructs a map of label -> {@link IdeBuildInfo} from a list of files, parsing each files into
     * a {@link JSONObject} and then converting that {@link JSONObject} to an {@link IdeBuildInfo}
     * object.
     */
    static ImmutableMap<String, IdeBuildInfo> getInfo(List<String> files) throws IOException, InterruptedException {
        ImmutableMap.Builder<String, IdeBuildInfo> infos = ImmutableMap.builder();
        for (String s : files) {
            if (!s.isEmpty()) {
                IdeBuildInfo buildInfo = new IdeBuildInfo(new JSONObject(new JSONTokener(new FileInputStream(s))));
                infos.put(buildInfo.label, buildInfo);
            }
        }
        return infos.build();
    }

    private ImmutableList<Jars> jsonToJarArray(JSONArray array) {
        ImmutableList.Builder<Jars> builder = ImmutableList.builder();
        for (Object o : array) {
            builder.add(new Jars((JSONObject) o));
        }
        return builder.build();
    }

    private ImmutableList<String> jsonToStringArray(JSONArray array) {
        ImmutableList.Builder<String> builder = ImmutableList.builder();
        for (Object o : array) {
            builder.add(o.toString());
        }
        return builder.build();
    }

    /**
     * Location of the target (build file).
     */
    public String getLocation() {
        return location;
    }

    /**
     * List of dependencies of the target.
     */
    public ImmutableList<String> getDeps() {
        return deps;
    }

    /**
     * Kind of the target (e.g., java_test or java_binary).
     */
    public String getKind() {
        return kind;
    }

    /**
     * Label of the target.
     */
    public String getLabel() {
        return label;
    }

    /**
     * List of jars generated by annotations processors when building this target.
     */
    public ImmutableList<Jars> getGeneratedJars() {
        return generatedJars;
    }

    /**
     * List of jars generated by building this target.
     */
    public ImmutableList<Jars> getJars() {
        return jars;
    }

    /**
     * List of sources consumed by this target.
     */
    public ImmutableList<String> getSources() {
        return sources;
    }
}