/*
 * Copyright 2000-2015 JetBrains s.r.o.
 *
 * 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.intellij.openapi.vfs.impl.jar;

import com.intellij.openapi.util.Couple;
import com.intellij.openapi.vfs.DeprecatedVirtualFileSystem;
import com.intellij.openapi.vfs.StandardFileSystems;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;

import java.util.HashMap;
import java.util.Map;

/**
 * @author yole
 */
public class CoreJarFileSystem extends DeprecatedVirtualFileSystem {
  private final Map<String, CoreJarHandler> myHandlers = new HashMap<String, CoreJarHandler>();

  @NotNull
  @Override
  public String getProtocol() {
    return StandardFileSystems.JAR_PROTOCOL;
  }

  @Override
  public VirtualFile findFileByPath(@NotNull @NonNls String path) {
    Couple<String> pair = splitPath(path);
    return getHandler(pair.first).findFileByPath(pair.second);
  }

  @NotNull
  protected Couple<String> splitPath(@NotNull String path) {
    int separator = path.indexOf("!/");
    if (separator < 0) {
      throw new IllegalArgumentException("Path in JarFileSystem must contain a separator: " + path);
    }
    String localPath = path.substring(0, separator);
    String pathInJar = path.substring(separator + 2);
    return Couple.of(localPath, pathInJar);
  }

  @NotNull
  private CoreJarHandler getHandler(String localPath) {
    CoreJarHandler handler = myHandlers.get(localPath);
    if (handler == null) {
      handler = new CoreJarHandler(this, localPath);
      myHandlers.put(localPath, handler);
    }
    return handler;
  }

  @Override
  public void refresh(boolean asynchronous) { }

  @Override
  public VirtualFile refreshAndFindFileByPath(@NotNull String path) {
    return findFileByPath(path);
  }
}

@@ -834,24 +834,82 @@
 irtualFile;%0A
+import com.intellij.util.containers.ConcurrentFactoryMap;%0A
 import org.j
@@ -983,34 +983,51 @@
 ll;%0A
-%0A
 import 
-java.util.HashMap;
+org.jetbrains.annotations.Nullable;%0A
 %0Aimp
@@ -1204,12 +1204,25 @@
 new 
-Hash
+ConcurrentFactory
 Map%3C
@@ -1246,16 +1246,168 @@
 ndler%3E()
+ %7B%0A    @Nullable%0A    @Override%0A    protected CoreJarHandler create(String key) %7B%0A      return new CoreJarHandler(CoreJarFileSystem.this, key);%0A    %7D%0A  %7D
 ;%0A%0A  @No
@@ -1640,26 +1640,30 @@
  return 
-get
+my
 Handler
+s.get
 (pair.fi
@@ -2105,284 +2105,8 @@
  %7D%0A%0A
-  @NotNull%0A  private CoreJarHandler getHandler(String localPath) %7B%0A    CoreJarHandler handler = myHandlers.get(localPath);%0A    if (handler == null) %7B%0A      handler = new CoreJarHandler(this, localPath);%0A      myHandlers.put(localPath, handler);%0A    %7D%0A    return handler;%0A  %7D%0A%0A
   @O
@@ -2280,11 +2280,126 @@
 th);%0A  %7D
+%0A%0A  @SuppressWarnings(%22unused%22)  // used in Kotlin%0A  public void clearHandlersCache() %7B%0A    myHandlers.clear();%0A  %7D
 %0A%7D%0A

use ConcurrentFactoryMap to simplify implementation of CoreJarFileSystem; add API to clear list of handlers