Java tutorial
/* * Copyright (C) 2016 Original Authors * * 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 io.fabric8.docker.client.impl; import com.squareup.okhttp.OkHttpClient; import com.squareup.okhttp.Request; import com.squareup.okhttp.RequestBody; import com.squareup.okhttp.Response; import io.fabric8.docker.api.model.Callback; import io.fabric8.docker.api.model.ImageDelete; import io.fabric8.docker.api.model.ImageHistory; import io.fabric8.docker.api.model.ImageInspect; import io.fabric8.docker.client.Config; import io.fabric8.docker.client.DockerClientException; import io.fabric8.docker.client.utils.InputStreamPumper; import io.fabric8.docker.client.utils.URLUtils; import io.fabric8.docker.dsl.OutputHandle; import io.fabric8.docker.dsl.image.ForceAndPruneNoInterface; import io.fabric8.docker.dsl.image.ImageInspectPullHistoryPushTagDeleteGetLoadInterface; import io.fabric8.docker.dsl.image.InRepositoryForceTagNameInterface; import io.fabric8.docker.dsl.image.UsingListenerRedirectingWritingOutputTagForceToRegistryInterface; import io.fabric8.docker.dsl.image.UsingListenerRedirectingWritingOutputTagFromRegistryInterface; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.nio.file.Files; import java.nio.file.Paths; import java.util.List; public class ImageNamedOperationImpl extends BaseImageOperation implements ImageInspectPullHistoryPushTagDeleteGetLoadInterface<ImageInspect, OutputHandle, List<ImageHistory>, Boolean, List<ImageDelete>, InputStream> { private static final String HISTORY_OPERATION = "history"; private static final String INSPECT_OPERATION = "json"; private static final String GET_OPERATION = "get"; private static final String LOAD_OPERATION = "load"; public ImageNamedOperationImpl(OkHttpClient client, Config config, String name) { super(client, config, name, null); } @Override public ForceAndPruneNoInterface<List<ImageDelete>> delete() { return new DeleteImage(client, config, name); } @Override public List<ImageHistory> history() { try { return handleList(getOperationUrl(HISTORY_OPERATION), ImageHistory.class); } catch (Exception e) { throw DockerClientException.launderThrowable(e); } } @Override public ImageInspect inspect() { try { return handleGet(getOperationUrl(INSPECT_OPERATION), ImageInspect.class); } catch (Exception e) { throw DockerClientException.launderThrowable(e); } } @Override public InRepositoryForceTagNameInterface<Boolean> tag() { return new TagImage(client, config, name); } @Override public UsingListenerRedirectingWritingOutputTagForceToRegistryInterface<OutputHandle> push() { return new PushImage(client, config, name); } @Override public InputStream get() { try { StringBuilder sb = new StringBuilder().append(getOperationUrl(GET_OPERATION)); Request request = new Request.Builder().get().url(sb.toString()).build(); Response response = client.newCall(request).execute(); return response.body().byteStream(); } catch (Exception e) { throw DockerClientException.launderThrowable(e); } } public Boolean load(String path) { try { StringBuilder sb = new StringBuilder() .append(URLUtils.join(getRootUrl().toString(), LOAD_OPERATION).toString()); RequestBody body = RequestBody.create(MEDIA_TYPE_TAR, new File(path)); Request request = new Request.Builder().post(body).url(sb.toString()).build(); Response response = client.newCall(request).execute(); return response.isSuccessful(); } catch (Exception e) { throw DockerClientException.launderThrowable(e); } } @Override public Boolean load(InputStream inputStream) { try { File tempFile = Files.createTempFile(Paths.get(DEFAULT_TEMP_DIR), DOCKER_PREFIX, BZIP2_SUFFIX).toFile(); try (final FileOutputStream fout = new FileOutputStream(tempFile)) { InputStreamPumper pumper = new InputStreamPumper(inputStream, new Callback<byte[], Void>() { @Override public Void call(byte[] input) { try { fout.write(input); } catch (IOException e) { throw DockerClientException.launderThrowable(e); } return null; } }); pumper.run(); pumper.close(); } return load(tempFile.getAbsolutePath()); } catch (Exception e) { throw DockerClientException.launderThrowable(e); } } @Override public UsingListenerRedirectingWritingOutputTagFromRegistryInterface<OutputHandle> pull() { return new PullImage(client, config, name); } }