java/com/google/gerrit/httpd/raw/BowerComponentsDevServlet.java

// Copyright (C) 2015 The Android Open Source Project
//
// 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.google.gerrit.httpd.raw;

import com.google.common.cache.Cache;
import com.google.gerrit.launcher.GerritLauncher;
import java.io.IOException;
import java.nio.file.Path;
import java.util.Objects;

/* Bower component servlet only used in development mode */
class BowerComponentsDevServlet extends ResourceServlet {
  private static final long serialVersionUID = 1L;

  private final Path bowerComponents;
  private final Path zip;

  BowerComponentsDevServlet(Cache<Path, Resource> cache, BazelBuild builder) throws IOException {
    super(cache, true);

    Objects.requireNonNull(builder);
    BazelBuild.Label label = builder.polygerritComponents();
    try {
      builder.build(label);
    } catch (BazelBuild.BuildFailureException e) {
      throw new IOException(e);
    }

    zip = builder.targetPath(label);
    bowerComponents = GerritLauncher.newZipFileSystem(zip).getPath("/");
  }

  @Override
  protected Path getResourcePath(String pathInfo) throws IOException {
    return bowerComponents.resolve(pathInfo);
  }
}