| /* |
| * 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 |
| * |
| * https://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 org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.util.DeweyDecimal; |
| import org.apache.tools.ant.util.JavaEnvUtils; |
| |
| /** |
| * An Java version condition. |
| * @since Ant 1.10.2 |
| */ |
| public class JavaVersion implements Condition { |
| |
| private String atMost = null; |
| private String atLeast = null; |
| private String exactly = null; |
| |
| /** |
| * Evaluate the condition. |
| * @return true if the condition is true. |
| * @throws BuildException if an error occurs. |
| */ |
| public boolean eval() throws BuildException { |
| validate(); |
| DeweyDecimal actual = JavaEnvUtils.getParsedJavaVersion(); |
| if (null != atLeast) { |
| return actual.isGreaterThanOrEqual(new DeweyDecimal(atLeast)); |
| } |
| if (null != exactly) { |
| return actual.isEqual(new DeweyDecimal(exactly)); |
| } |
| if (atMost != null) { |
| return actual.isLessThanOrEqual(new DeweyDecimal(atMost)); |
| } |
| //default |
| return false; |
| } |
| |
| private void validate() throws BuildException { |
| if (atLeast != null && exactly != null && atMost != null) { |
| throw new BuildException("Only one of atleast or atmost or exactly may be set."); |
| } |
| if (null == atLeast && null == exactly && atMost == null) { |
| throw new BuildException("One of atleast or atmost or exactly must be set."); |
| } |
| if (atLeast != null) { |
| try { |
| // only created for side effect |
| new DeweyDecimal(atLeast); //NOSONAR |
| } catch (NumberFormatException e) { |
| throw new BuildException( |
| "The 'atleast' attribute is not a Dewey Decimal eg 1.1.0 : " |
| + atLeast); |
| } |
| } else if (atMost != null) { |
| try { |
| new DeweyDecimal(atMost); //NOSONAR |
| } catch (NumberFormatException e) { |
| throw new BuildException( |
| "The 'atmost' attribute is not a Dewey Decimal eg 1.1.0 : " |
| + atMost); |
| } |
| } else { |
| try { |
| // only created for side effect |
| new DeweyDecimal(exactly); //NOSONAR |
| } catch (NumberFormatException e) { |
| throw new BuildException( |
| "The 'exactly' attribute is not a Dewey Decimal eg 1.1.0 : " |
| + exactly); |
| } |
| } |
| } |
| |
| /** |
| * Get the atleast attribute. |
| * @return the atleast attribute. |
| */ |
| public String getAtLeast() { |
| return atLeast; |
| } |
| |
| /** |
| * Set the atleast attribute. |
| * This is of the form major.minor.point. |
| * For example 1.7.0. |
| * @param atLeast the version to set |
| */ |
| public void setAtLeast(String atLeast) { |
| this.atLeast = atLeast; |
| } |
| |
| /** |
| * Get the atmost attribute. |
| * @return the atmost attribute. |
| * @since Ant 1.10.10 |
| */ |
| public String getAtMost() { |
| return atMost; |
| } |
| |
| /** |
| * Set the atmost attribute. |
| * This is of the form major.minor.point. |
| * For example 11.0.2 |
| * @param atMost the version to set |
| * @since Ant 1.10.10 |
| */ |
| public void setAtMost(String atMost) { |
| this.atMost = atMost; |
| } |
| |
| /** |
| * Get the exactly attribute. |
| * @return the exactly attribute. |
| */ |
| public String getExactly() { |
| return exactly; |
| } |
| |
| /** |
| * Set the exactly attribute. |
| * This is of the form major.minor.point. |
| * For example 1.7.0. |
| * @param exactly the version to check against. |
| */ |
| public void setExactly(String exactly) { |
| this.exactly = exactly; |
| } |
| |
| } |