JavaDockerClient.java

/**
 * Copyright 2014 Transmode AB
 *
 * 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 se.transmode.gradle.plugins.docker.client;

import com.google.common.base.Preconditions;
import com.sun.jersey.api.client.ClientResponse;
import org.apache.commons.lang.StringUtils;
import org.gradle.api.GradleException;
import org.gradle.api.logging.Logger;
import org.gradle.api.logging.Logging;

import java.io.File;

public class JavaDockerClient extends com.github.dockerjava.client.DockerClient implements DockerClient {

    private static Logger log = Logging.getLogger(JavaDockerClient.class);

    JavaDockerClient() {
        super();
    }

    JavaDockerClient(String url) {
        super(url);
    }

    @Override
    public void buildImage(File buildDir, String tag) {
        Preconditions.checkNotNull(tag, "Image tag can not be null.");
        Preconditions.checkArgument(!tag.isEmpty(),  "Image tag can not be empty.");
        ClientResponse response = buildImageCmd(buildDir).withTag(tag).exec();
        checkAndPrintResponse(response);
    }

    @Override
    public void pushImage(String tag) {
        Preconditions.checkNotNull(tag, "Image tag can not be null.");
        Preconditions.checkArgument(!tag.isEmpty(),  "Image tag can not be empty.");
        ClientResponse response = pushImageCmd(tag).exec();
        checkAndPrintResponse(response);
    }

    private static void checkAndPrintResponse(ClientResponse response) {
        String msg = response.getEntity(String.class);
        if (response.getStatusInfo() != ClientResponse.Status.OK) {
            throw new GradleException(
                "Docker API error: Failed to build Image:\n"+msg);
        }
        System.out.println(msg);
    }

    public static JavaDockerClient create(String url, String user, String password, String email) {
        JavaDockerClient client;
        if (StringUtils.isEmpty(url)) {
            log.info("Connecting to localhost");
            // TODO -- use no-arg constructor once we switch to java-docker 0.9.1
            client = new JavaDockerClient("http://localhost:2375");
        } else {
            log.info("Connecting to {}", url);
            client = new JavaDockerClient(url);
        }

        if (StringUtils.isNotEmpty(user)) {
            client.setCredentials(user, password, email);
        }

        return client;
    }
}