| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.tools.ant.taskdefs.condition; |
| |
| import java.io.File; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.util.JavaEnvUtils; |
| import org.apache.tools.ant.util.ReflectWrapper; |
| import org.apache.tools.ant.util.StringUtils; |
| |
| /** |
| * <hasfreespace> |
| * <p>Condition returns true if selected partition |
| * has the requested space, false otherwise.</p> |
| * @since Ant 1.7 |
| */ |
| public class HasFreeSpace implements Condition { |
| |
| private String partition; |
| private String needed; |
| |
| /** |
| * Evaluate the condition. |
| * @return true if there enough free space. |
| * @throws BuildException if there is a problem. |
| */ |
| public boolean eval() throws BuildException { |
| validate(); |
| try { |
| if (JavaEnvUtils.isAtLeastJavaVersion("1.6")) { |
| //reflection to avoid bootstrap/build problems |
| File fs = new File(partition); |
| ReflectWrapper w = new ReflectWrapper(fs); |
| long free = ((Long) w.invoke("getFreeSpace")).longValue(); |
| return free >= StringUtils.parseHumanSizes(needed); |
| } else { |
| throw new BuildException("HasFreeSpace condition not supported on Java5 or less."); |
| } |
| } catch (Exception e) { |
| throw new BuildException(e); |
| } |
| } |
| |
| private void validate() throws BuildException { |
| if (null == partition) { |
| throw new BuildException("Please set the partition attribute."); |
| } |
| if (null == needed) { |
| throw new BuildException("Please set the needed attribute."); |
| } |
| } |
| |
| /** |
| * The partition/device to check |
| * @return the partition. |
| */ |
| public String getPartition() { |
| return partition; |
| } |
| |
| /** |
| * Set the partition name. |
| * @param partition the name to use. |
| */ |
| public void setPartition(String partition) { |
| this.partition = partition; |
| } |
| |
| /** |
| * The amount of free space required |
| * @return the amount required |
| */ |
| public String getNeeded() { |
| return needed; |
| } |
| |
| /** |
| * Set the amount of space required. |
| * @param needed the amount required. |
| */ |
| public void setNeeded(String needed) { |
| this.needed = needed; |
| } |
| } |