plugins/maven/maven-server-api/src/org/jetbrains/idea/maven/server/MavenServerUtil.java

/*
 * Copyright 2000-2009 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 org.jetbrains.idea.maven.server;

import com.intellij.openapi.util.SystemInfo;

import java.util.*;

public class MavenServerUtil {
  private static final Properties mySystemPropertiesCache;

  static {
    Properties res = new Properties();
    res.putAll(System.getProperties());
    
    for (Iterator<Object> itr = res.keySet().iterator(); itr.hasNext(); ) {
      String propertyName = itr.next().toString();
      if (propertyName.startsWith("idea.")) {
        itr.remove();
      }
    }

    for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
      String key = entry.getKey();

      if (isMagicalProperty(key)) continue;

      if (SystemInfo.isWindows) {
        key = key.toUpperCase();
      }

      res.setProperty("env." + key, entry.getValue());
    }

    mySystemPropertiesCache = res;
  }

  public static Properties collectSystemProperties() {
    return mySystemPropertiesCache;
  }

  private static boolean isMagicalProperty(String key) {
    return key.startsWith("=");
  }
}