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gcontracts-core/src/main/java/org/gcontracts/CyclicAssertionCallException.java
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| /** | ||
| * Copyright (c) 2011, Andre Steingress | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| * following conditions are met: | ||
| * | ||
| * 1.) Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| * disclaimer. | ||
| * 2.) Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following | ||
| * disclaimer in the documentation and/or other materials provided with the distribution. | ||
| * 3.) Neither the name of Andre Steingress nor the names of its contributors may be used to endorse or | ||
| * promote products derived from this software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| package org.gcontracts; | ||
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| /** | ||
| * Thrown whenever pre- or post-conditions are called in a cyclic way. | ||
| * | ||
| * @author ast | ||
| */ | ||
| public class CyclicAssertionCallException extends RuntimeException { | ||
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| public CyclicAssertionCallException() { | ||
| } | ||
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| public CyclicAssertionCallException(String s) { | ||
| super(s); | ||
| } | ||
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| public CyclicAssertionCallException(String s, Throwable throwable) { | ||
| super(s, throwable); | ||
| } | ||
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| public CyclicAssertionCallException(Throwable throwable) { | ||
| super(throwable); | ||
| } | ||
| } |
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62 changes: 62 additions & 0 deletions
62
gcontracts-core/src/main/java/org/gcontracts/generation/CyclicAssertionCallInterceptor.java
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| /** | ||
| * Copyright (c) 2011, Andre Steingress | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| * following conditions are met: | ||
| * | ||
| * 1.) Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| * disclaimer. | ||
| * 2.) Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following | ||
| * disclaimer in the documentation and/or other materials provided with the distribution. | ||
| * 3.) Neither the name of Andre Steingress nor the names of its contributors may be used to endorse or | ||
| * promote products derived from this software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| package org.gcontracts.generation; | ||
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| import groovy.lang.Interceptor; | ||
| import org.gcontracts.CyclicAssertionCallException; | ||
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| import java.util.LinkedList; | ||
| import java.util.List; | ||
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| /** | ||
| * {@link Interceptor} implementation which checks for cyclic method calls - as these need to be avoided | ||
| * in contract definitions. | ||
| * | ||
| * @see Interceptor | ||
| * | ||
| * @author ast | ||
| */ | ||
| public class CyclicAssertionCallInterceptor implements Interceptor { | ||
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| private List<String> callStack = new LinkedList<String>(); | ||
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| @Override | ||
| public Object beforeInvoke(Object object, String methodName, Object[] arguments) { | ||
| if (callStack.contains(methodName)) throw new CyclicAssertionCallException("Method '" + methodName + "' has already been called from the current assertion - assertion call cycle detected!"); | ||
| callStack.add(methodName); | ||
| System.out.println("ADDED " + methodName); | ||
| return object; | ||
| } | ||
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| @Override | ||
| public Object afterInvoke(Object object, String methodName, Object[] arguments, Object result) { | ||
| callStack.remove(methodName); | ||
| System.out.println("REMOVED " + methodName); | ||
| return result; | ||
| } | ||
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| @Override | ||
| public boolean doInvoke() { | ||
| return true; | ||
| } | ||
| } |
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