com.facebook.buck.plugin.intellij.commands.TargetsCommand.java Source code

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Here is the source code for com.facebook.buck.plugin.intellij.commands.TargetsCommand.java

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/*
 * Copyright 2013-present Facebook, 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 com.facebook.buck.plugin.intellij.commands;

import com.facebook.buck.plugin.intellij.BuckTarget;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableList;
import com.intellij.openapi.diagnostic.Logger;

import java.io.IOException;

public class TargetsCommand {

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

    private TargetsCommand() {
    }

    public static ImmutableList<BuckTarget> getTargets(BuckRunner buckRunner) {
        try {
            int exitCode = buckRunner.execute("targets", "--json");
            if (exitCode != 0) {
                throw new RuntimeException(buckRunner.getStderr());
            }

            // Parse output
            ObjectMapper mapper = new ObjectMapper();
            JsonFactory factory = mapper.getJsonFactory();
            JsonParser parser = factory.createJsonParser(buckRunner.getStdout());
            JsonNode jsonNode = mapper.readTree(parser);
            if (!jsonNode.isArray()) {
                throw new IllegalStateException();
            }

            ImmutableList.Builder<BuckTarget> builder = ImmutableList.builder();
            for (JsonNode target : jsonNode) {
                if (!target.isObject()) {
                    throw new IllegalStateException();
                }
                String basePath = target.get("buck.base_path").asText();
                String name = target.get("name").asText();
                String type = target.get("type").asText();
                builder.add(new BuckTarget(type, name, basePath));
            }
            return builder.build();
        } catch (IOException e) {
            LOG.error(e);
        } catch (RuntimeException e) {
            LOG.error(e);
        }
        return ImmutableList.of();
    }
}