124 lines
2.8 KiB
Java
124 lines
2.8 KiB
Java
package ch.ethz.infsec.jtestdataaccessor.nodes;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import static org.junit.Assert.fail;
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/**
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* A function node for a function which is used to set up the environment or to
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* create some value.
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*
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* @author ms
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*
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*/
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public class Function extends Value {
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private String name;
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/**
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* Initialize a new function.
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*
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* @param name
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* of the new function.
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*/
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public Function(String name) {
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this.name = name;
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}
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/**
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* Get the name of the function.
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*
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* @return the name.
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*/
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public String getName() {
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return name;
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}
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/**
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* Call the function on the object with the junit tests, discarding the
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* result.
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*
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* @throws Throwable
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*
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*/
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public void call() throws Throwable {
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getValue();
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}
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/**
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* Call the function using the given parameter types and arguments on the
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* object with the junit tests, discarding the result.
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*
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* @throws Throwable
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*
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*/
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public void call(Class[] classes, Object[] objects) throws Throwable {
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getValue(classes, objects);
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}
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/**
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* Call the function on the object with the junit tests, but do not discard
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* the result.
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*
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* @throws Throwable
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*/
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@Override
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public Object getValue() throws Throwable {
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return getValue((Class[]) null, (Object[]) null);
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}
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/**
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* Call the function using the given parameter types and arguments on the
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* object with the junit tests and return the result.
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*
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* @param params
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* types of the parameters.
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* @param args
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* arguments to call the function with.
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* @return the value produced by the called function.
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* @throws Throwable
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*/
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public Object getValue(Class[] params, Object[] args) throws Throwable {
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try {
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if (testdata != null && testdata.getTestDataAccessor() != null
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&& testdata.getTestDataAccessor().getTestDataUser() != null) {
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Class c = testdata.getTestDataAccessor().getTestDataUser()
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.getClass();
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Method m = c.getMethod(name, params);
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return m.invoke(testdata.getTestDataAccessor()
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.getTestDataUser(), args);
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} else {
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System.err
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.println("No TestDataUser found to execute method on!");
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}
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} catch (InvocationTargetException e) {
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// The called function has thrown an exception, so return that
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// exception instead of a InvocationTargetException which is not
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// really useful outside.
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throw e.getCause();
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} catch (Exception e) {
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// There seems to be an exception in our code, which should not
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// happen...
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e.printStackTrace();
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fail("Failed to execute the specified function " + getName() + ".");
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}
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return null;
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}
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@Override
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public String toString() {
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return toString("");
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}
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/**
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* Pretty print the function name.
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*
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* @return the pretty name.
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*/
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@Override
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public String toString(String indent) {
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return indent + name + "()";
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}
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} |