Examples of org.apache.sling.api.resource.ValueMap

org.apache.sling.api.resource.ValueMap
The ValueMap is an easy way to access properties of a resource. With resources you can use {@link Resource#getValueMap()} to obtain thevalue map of a resource. The various getter methods can be used to get the properties of the resource.
In addition a value map returned by a resource supports getting of deep values, like get("content/title") which is equivalent to call getChild("content") on the resource, get the value map of that resource and call get("title") - but without requiring to do all the checks. Only the following methods support deep reads: {@link #get(Object)}, {@link #get(String,Class)}, {@link #get(String,Object)} and{@link #containsKey(Object)}. A ValueMap should be immutable.

        assertEquals(child, model.getFirstChild());
    }


    @Test
    public void testChildValueMap() {
        ValueMap map = ValueMapDecorator.EMPTY;


        Resource child = mock(Resource.class);
        when(child.adaptTo(ValueMap.class)).thenReturn(map);


        Resource res = mock(Resource.class);

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    @Test
    public void testChildModel() {
        Object value = RandomStringUtils.randomAlphabetic(10);
        Map<String, Object> props = Collections.singletonMap("property", value);
        ValueMap map = new ValueMapDecorator(props);


        final Resource firstChild = mock(Resource.class);
        when(firstChild.adaptTo(ValueMap.class)).thenReturn(map);
        when(firstChild.adaptTo(ChildModel.class)).thenAnswer(new AdaptToChildModel());


        Object firstGrandChildValue = RandomStringUtils.randomAlphabetic(10);
        ValueMap firstGrandChildMap = new ValueMapDecorator(Collections.singletonMap("property", firstGrandChildValue));
        Object secondGrandChildValue = RandomStringUtils.randomAlphabetic(10);
        ValueMap secondGrandChildMap = new ValueMapDecorator(Collections.singletonMap("property", secondGrandChildValue));


        final Resource firstGrandChild = mock(Resource.class);
        when(firstGrandChild.adaptTo(ValueMap.class)).thenReturn(firstGrandChildMap);
        when(firstGrandChild.adaptTo(ChildModel.class)).thenAnswer(new AdaptToChildModel());

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     * Read an event from the resource
     * @return The event object or <code>null</code>
     */
    private Event readEvent(final Resource eventResource) {
        try {
            final ValueMap vm = ResourceHelper.getValueMap(eventResource);
            final String topic = vm.get(EventConstants.EVENT_TOPIC, String.class);
            if ( topic == null ) {
                // no topic should never happen as we check the resource type before
                logger.error("Unable to read distributed event from " + eventResource.getPath() + " : no topic property available.");
            } else {
                final Map<String, Object> properties = ResourceHelper.cloneValueMap(vm);

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    @Test
    public void testSimpleValueModelField() {
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("first", "first-value");
        map.put("second", "second-value");
        ValueMap vm = new ValueMapDecorator(map);


        Resource res = mock(Resource.class);
        when(res.adaptTo(ValueMap.class)).thenReturn(vm);
        when(request.getResource()).thenReturn(res);

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        Logger logFromValueMap = LoggerFactory.getLogger(this.getClass());


        Map<String, Object> map = new HashMap<String, Object>();
        map.put("first", "first-value");
        map.put("log", logFromValueMap);
        ValueMap vm = new ValueMapDecorator(map);


        Resource res = mock(Resource.class);
        when(res.adaptTo(ValueMap.class)).thenReturn(vm);
        when(request.getResource()).thenReturn(res);

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    @Test
    public void testSimpleValueModelConstructor() {
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("first", "first-value");
        map.put("second", "second-value");
        ValueMap vm = new ValueMapDecorator(map);


        Resource res = mock(Resource.class);
        when(res.adaptTo(ValueMap.class)).thenReturn(vm);
        when(request.getResource()).thenReturn(res);

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        Logger logFromValueMap = LoggerFactory.getLogger(this.getClass());


        Map<String, Object> map = new HashMap<String, Object>();
        map.put("first", "first-value");
        map.put("log", logFromValueMap);
        ValueMap vm = new ValueMapDecorator(map);


        Resource res = mock(Resource.class);
        when(res.adaptTo(ValueMap.class)).thenReturn(vm);
        when(request.getResource()).thenReturn(res);

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        when(resourceAccessGate.canRead(resource)).thenReturn(ResourceAccessGate.GateResult.GRANTED);
        when(resourceAccessGate.canUpdate(resource)).thenReturn(ResourceAccessGate.GateResult.DENIED);
        Resource readableResource = resourceAccessSecurity.getReadableResource(resource);


        ValueMap resultValueMap = readableResource.adaptTo(ValueMap.class);


        resultValueMap.put("modified", "value");


        verify(valueMap, times(0)).put("modified", "value");
    }

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            throw (InstantiationException)new InstantiationException(iae.getMessage()).initCause(iae);
        }
    }


    public static ValueMap getValueMap(final Resource resource) throws InstantiationException {
        final ValueMap vm = resource.getValueMap();
        // trigger full loading
        try {
            vm.size();
        } catch ( final IllegalArgumentException iae) {
            // the JCR implementation might throw an IAE if something goes wrong
            throw (InstantiationException)new InstantiationException(iae.getMessage()).initCause(iae);
        }
        return vm;

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    public void testArrayPrimitivesModel() {
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("intArray", new int[] { 1, 2, 9, 8 });
        map.put("secondIntArray", new Integer[] {1, 2, 9, 8});


        ValueMap vm = new ValueMapDecorator(map);
        Resource res = mock(Resource.class);
        when(res.adaptTo(ValueMap.class)).thenReturn(vm);


        ArrayPrimitivesModel model = factory.getAdapter(res, ArrayPrimitivesModel.class);
        assertNotNull(model);

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