proguard.resources.kotlinmodule.io.KotlinModuleDataEntryWriter Maven / Gradle / Ivy

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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.

There is a newer version: 9.1.6

/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2020 Guardsquare NV
 *
 * 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 proguard.resources.kotlinmodule.io;

import java.io.*;
import proguard.io.*;
import proguard.resources.file.ResourceFilePool;
import proguard.resources.file.visitor.ResourceFileVisitor;
import proguard.resources.kotlinmodule.KotlinModule;

/**
 * Write a {@link KotlinModule} from a {@link ResourceFilePool} to the supplied {@link
 * DataEntryWriter}.
 *
 * @author James Hamilton
 */
public class KotlinModuleDataEntryWriter implements DataEntryWriter {
  private final ResourceFilePool resourceFilePool;
  private final DataEntryWriter dataEntryWriter;

  public KotlinModuleDataEntryWriter(
      ResourceFilePool resourceFilePool, DataEntryWriter dataEntryWriter) {
    this.resourceFilePool = resourceFilePool;
    this.dataEntryWriter = dataEntryWriter;
  }

  // Implementations for DataEntryWriter.

  @Override
  public boolean createDirectory(DataEntry dataEntry) throws IOException {
    return dataEntryWriter.createDirectory(dataEntry);
  }

  @Override
  public boolean sameOutputStream(DataEntry dataEntry1, DataEntry dataEntry2) throws IOException {
    return dataEntryWriter.sameOutputStream(dataEntry1, dataEntry2);
  }

  @Override
  public OutputStream createOutputStream(DataEntry dataEntry) throws IOException {
    KotlinModuleGetter kotlinModuleGetter = new KotlinModuleGetter();
    resourceFilePool.resourceFileAccept(dataEntry.getName(), kotlinModuleGetter);
    KotlinModule kotlinModule = kotlinModuleGetter.kotlinModule;

    if (kotlinModule != null) {
      OutputStream outputStream =
          new BufferedOutputStream(dataEntryWriter.createOutputStream(dataEntry));
      kotlinModule.accept(new KotlinModuleWriter(outputStream));
      outputStream.flush();
      outputStream.close();
    }
    return null;
  }

  @Override
  public void close() throws IOException {
    dataEntryWriter.close();
  }

  @Override
  public void println(PrintWriter pw, String prefix) {
    pw.println(prefix + "KotlinModuleDataEntryWriter");
    dataEntryWriter.println(pw, prefix);
  }

  private static class KotlinModuleGetter implements ResourceFileVisitor {
    KotlinModule kotlinModule;

    @Override
    public void visitKotlinModule(KotlinModule kotlinModule) {
      this.kotlinModule = kotlinModule;
    }
  }
}