How to use readObject method of org.easymock.internal.DefaultClassInstantiator class

Best Easymock code snippet using org.easymock.internal.DefaultClassInstantiator.readObject

Source:DefaultClassInstantiator.java

...38    public Object newInstance(final Class<?> c) throws InstantiationException {3940        if (isSerializable(c)) {41            try {42                return readObject(getSerializedBytes(c));43                // ///CLOVER:OFF44            } catch (final IOException e) {45                throw new RuntimeException("Failed to instantiate " + c.getName() + "'s mock: ", e);46            } catch (final ClassNotFoundException e) {47                throw new RuntimeException("Failed to instantiate " + c.getName() + "'s mock: ", e);48            }49            // ///CLOVER:ON50        }5152        final Constructor<?> constructor = getConstructorToUse(c);53        final Object[] params = getArgsForTypes(constructor.getParameterTypes());54        try {55            return constructor.newInstance(params);56            // ///CLOVER:OFF57        } catch (final IllegalArgumentException e) {58            throw new RuntimeException("Failed to instantiate " + c.getName() + "'s mock: ", e);59        } catch (final IllegalAccessException e) {60            throw new RuntimeException("Failed to instantiate " + c.getName() + "'s mock: ", e);61            // ///CLOVER:ON62        } catch (final InvocationTargetException e) {63            throw new RuntimeException("Failed to instantiate " + c.getName() + "'s mock: ", e);64        }65    }6667    /**68     * Tells if the provided class is serializable69     * 70     * @param clazz71     *            Class to check72     * @return If the class is serializable73     */74    private boolean isSerializable(final Class<?> clazz) {75        return Serializable.class.isAssignableFrom(clazz);76    }7778    /**79     * Return the constructor considered the best to use with this class.80     * Algorithm is: No args constructor and then first constructor defined in81     * the class82     * 83     * @param clazz84     *            Class in which constructor is searched85     * @return Constructor to use86     */87    public Constructor<?> getConstructorToUse(final Class<?> clazz) {88        // First try to use the empty constructor89        try {90            return clazz.getConstructor(new Class[0]);91        } catch (final NoSuchMethodException e) {92            // If it fails just use the first one93            if (clazz.getConstructors().length == 0) {94                throw new IllegalArgumentException("No visible constructors in class " + clazz.getName());95            }96            return clazz.getConstructors()[0];97        }98    }99100    /**101     * Get some default instances of provided classes102     * 103     * @param methodTypes104     *            Classes to instantiate105     * @return Instances of methodTypes in order106     * @throws InstantiationException Thrown if the class instantiation fails107     */108    public Object[] getArgsForTypes(final Class<?>[] methodTypes) throws InstantiationException {109        final Object[] methodArgs = new Object[methodTypes.length];110111        for (int i = 0; i < methodTypes.length; i++) {112113            if (methodTypes[i].isPrimitive()) {114                // Return a nice wrapped primitive type115                methodArgs[i] = RecordState.emptyReturnValueFor(methodTypes[i]);116            // ///CLOVER:OFF TODO: Remove when we manage to fix the ignored tests117            } else if (Modifier.isFinal(methodTypes[i].getModifiers())) {118                // Instantiate the class using the best constructor we can find119                // (because it's not120                // possible to mock a final class)121                methodArgs[i] = newInstance(methodTypes[i]);122                // ///CLOVER:ON123            } else {124                // For all classes and interfaces, just return a nice mock125                final Object mock = EasyMock.createNiceMock(methodTypes[i]);126                EasyMock.replay(mock);127                methodArgs[i] = mock;128            }129        }130        return methodArgs;131    }132133    private static byte[] getSerializedBytes(final Class<?> clazz) throws IOException {134        final ByteArrayOutputStream baos = new ByteArrayOutputStream();135        final DataOutputStream data = new DataOutputStream(baos);136        data.writeShort(ObjectStreamConstants.STREAM_MAGIC);137        data.writeShort(ObjectStreamConstants.STREAM_VERSION);138        data.writeByte(ObjectStreamConstants.TC_OBJECT);139        data.writeByte(ObjectStreamConstants.TC_CLASSDESC);140        data.writeUTF(clazz.getName());141142        final Long suid = getSerializableUID(clazz);143144        data.writeLong(suid.longValue());145146        data.writeByte(2); // classDescFlags (2 = Serializable)147        data.writeShort(0); // field count148        data.writeByte(ObjectStreamConstants.TC_ENDBLOCKDATA);149        data.writeByte(ObjectStreamConstants.TC_NULL);150        return baos.toByteArray();151    }152153    private static Long getSerializableUID(final Class<?> clazz) {154155        try {156            final Field f = clazz.getDeclaredField("serialVersionUID");157            final int mask = Modifier.STATIC | Modifier.FINAL;158            if ((f.getModifiers() & mask) == mask) {159                f.setAccessible(true);160                return Long.valueOf(f.getLong(null));161            }162        } catch (final NoSuchFieldException e) {163            // It's not there, compute it then164        } catch (final IllegalAccessException e) {165            // ///CLOVER:OFF166            throw new RuntimeException("Should have been able to get serialVersionUID since it's there");167            // ///CLOVER:ON168        }169        // ///CLOVER:OFF170        return callLongMethod(clazz,171                ClassInstantiatorFactory.is1_3Specifications() ? "computeSerialVersionUID"172                        : "computeDefaultSUID");173        // ///CLOVER:ON174    }175176    private static Long callLongMethod(final Class<?> clazz, final String methodName) {177178        Method method;179        // ///CLOVER:OFF180        try {181            method = ObjectStreamClass.class.getDeclaredMethod(methodName, new Class[] { Class.class });182        } catch (final NoSuchMethodException e) {183            throw new InternalError("ObjectStreamClass." + methodName + " seems to have vanished");184        }185        final boolean accessible = method.isAccessible();186        method.setAccessible(true);187        Long suid;188        try {189            suid = (Long) method.invoke(null, new Object[] { clazz });190        } catch (final IllegalAccessException e) {191            throw new InternalError("ObjectStreamClass." + methodName + " should have been accessible");192        } catch (final InvocationTargetException e) {193            throw new InternalError("ObjectStreamClass." + methodName + " failled to be called: "194                    + e.getMessage());195        }196        method.setAccessible(accessible);197        // ///CLOVER:ON198        return suid;199    }200201    private static Object readObject(final byte[] bytes) throws IOException, ClassNotFoundException {202        final ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes));203        return in.readObject();204    }205206}
...

readObject

Using AI Code Generation

1Object obj = new DefaultClassInstantiator().readObject(inputStream);2new DefaultClassInstantiator().writeObject(obj, outputStream);3Object obj = new DefaultClassInstantiator().readObject(inputStream);4new DefaultClassInstantiator().writeObject(obj, outputStream);5Object obj = new DefaultClassInstantiator().readObject(inputStream);6new DefaultClassInstantiator().writeObject(obj, outputStream);7Object obj = new DefaultClassInstantiator().readObject(inputStream);8new DefaultClassInstantiator().writeObject(obj, outputStream);9Object obj = new DefaultClassInstantiator().readObject(inputStream);10new DefaultClassInstantiator().writeObject(obj, outputStream);11Object obj = new DefaultClassInstantiator().readObject(inputStream);12new DefaultClassInstantiator().writeObject(obj, outputStream);13Object obj = new DefaultClassInstantiator().readObject(inputStream);14new DefaultClassInstantiator().writeObject(obj, outputStream);15Object obj = new DefaultClassInstantiator().readObject(inputStream);16new DefaultClassInstantiator().writeObject(obj,

readObject

Using AI Code Generation

1public class EasyMockDemo {2    public static void main(String[] args) {3        IBook book = EasyMock.createMock(IBook.class);4        EasyMock.expect(book.getName()).andReturn("Effective Java");5        EasyMock.replay(book);6        System.out.println(book.getName());7    }8}

readObject

Using AI Code Generation

1import org.easymock.internal.matchers.And;2import org.easymock.internal.matchers.Equals;3import org.easymock.internal.matchers.InstanceOf;4import org.easymock.internal.matchers.Or;5import org.easymock.internal.matchers.StartsWith;6import org.easymock.internal.matchers.EndsWith;7import org.easymock.internal.matchers.Not;8import java.io.ByteArrayInputStream;9import java.io.IOException;10import java.io.ObjectInputStream;11import java.io.ObjectStreamClass;12import java.io.Serializable;13import java.util.ArrayList;14import java.util.Arrays;15import java.util.List;16import java.util.Random;17public class EasyMockTest {18    public static void main(String[] args) throws Exception {19        And and = new And(Arrays.asList((Serializable) new Equals("a"), new StartsWith("b"), new EndsWith("c")));20        Or or = new Or(Arrays.asList((Serializable) new EndsWith("a"), new EndsWith("c")));21        Not not = new Not(new EndsWith("a"));22        InstanceOf instanceOf = new InstanceOf(String.class);23        List<String> list = new ArrayList<>();24        list.add("a");25        list.add("b");26        list.add("c");27        Random random = new Random(10);28        Equals equals = new Equals("a");29        And and2 = new And(Arrays.asList((Serializable) new Equals("a"), new StartsWith("b"), new EndsWith("c")));30        Or or2 = new Or(Arrays.asList((Serializable) new EndsWith("a"), new EndsWith("c")));

readObject

Using AI Code Generation

1import org.easymock.internal.DefaultClassInstantiator;2import org.easymock.internal.ClassInstantiator;3import org.easymock.internal.ClassInstantiatorFactory;4import org.easymock.internal.MocksControl;5import org.easymock.internal.ObjectMethodsFilter;6import java.io.IOException;7import java.io.ObjectInputStream;8import java.io.Serializable;9import java.util.ArrayList;10import java.util.List;11public class TestClassInstantiator {12    public static void main(String[] args) {13        ClassInstantiatorFactory factory = new ClassInstantiatorFactory();14        ClassInstantiator instantiator = factory.newClassInstantiator();15        Object obj = instantiator.newInstance(ArrayList.class);16        System.out.println(obj.getClass().getName());17    }18}

readObject

Using AI Code Generation

1public class MockObject {2    public static Object createMockObject(Class<?> clazz) {3        return new DefaultClassInstantiator().readObject(clazz);4    }5}6public class MockObjectTest {7    public void testCreateMockObject() {8        Object mockObject = MockObject.createMockObject(String.class);9        Assert.assertTrue(mockObject instanceof String);10    }11}12public class MockObjectTest2 {13    public void testCreateMockObject() {14        String mockObject = (String) MockObject.createMockObject(String.class);15        Assert.assertTrue(mockObject instanceof String);16    }17}18public class MockObjectTest3 {19    public void testCreateMockObject() {20        String mockObject = (String) MockObject.createMockObject(String.class);21        Assert.assertTrue(mockObject instanceof String);22    }23}24public class MockObjectTest4 {25    public void testCreateMockObject() {26        String mockObject = (String) MockObject.createMockObject(String.class);27        Assert.assertTrue(mockObject instanceof String);28    }29}30public class MockObjectTest5 {31    public void testCreateMockObject() {32        String mockObject = (String) MockObject.createMockObject(String.class);33        Assert.assertTrue(mockObject instanceof String);34    }35}36public class MockObjectTest6 {37    public void testCreateMockObject() {38        String mockObject = (String) MockObject.createMockObject(String.class);39        Assert.assertTrue(mockObject

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