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.

        pvm.put(PROP2, VALUE2);
        pvm.put(PROP3, VALUE3);
        pvm.save();


        // read with property map
        final ValueMap vm = this.createPropertyMap(testNode);
        assertEquals(VALUE, vm.get(TEST_PATH));
        assertEquals(VALUE1, vm.get(PROP1));
        assertEquals(VALUE2, vm.get(PROP2));
        assertEquals(VALUE3, vm.get(PROP3));


        // read properties
        assertEquals(VALUE, testNode.getProperty(TEST_PATH).getString());
        assertEquals(VALUE1, testNode.getProperty(PROP1).getString());
        assertEquals(VALUE2, testNode.getProperty(PROP2).getString());

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        pvm.put("jcr:a:b", VALUE3);
        pvm.put("jcr:", VALUE3);
        pvm.save();


        // read with property map
        final ValueMap vm = this.createPropertyMap(testNode);
        assertEquals(VALUE3, vm.get(PROP3));
        assertEquals(VALUE3, vm.get("jcr:a:b"));
        assertEquals(VALUE3, vm.get("jcr:"));


        // read properties
        assertEquals(VALUE3, testNode.getProperty(PROP3).getString());
        assertEquals(VALUE3, testNode.getProperty("jcr:"+Text.escapeIllegalJcrChars("a:b")).getString());
        assertEquals(VALUE3, testNode.getProperty(Text.escapeIllegalJcrChars("jcr:")).getString());

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        }
    }


    private static void assertStatus(final int expectedStatus,
            final int testStatus) {
        final ValueMap valueMap;
        if (testStatus == -2) {
            valueMap = null;
        } else if (testStatus == -1) {
            valueMap = new ValueMapDecorator(new HashMap<String, Object>());
        } else {

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        final Resource ratingsResource = resource.getChild("ratings");
        if ( ratingsResource != null ) {
            int count = 0;
            for(final Resource r : ratingsResource.getChildren()) {
                final ValueMap vm = r.getValueMap();
                final int current = vm.get(SlingshotConstants.PROPERTY_RATING, 0);
                rating += current;
                count++;
            }
            if ( count > 0 ) {
                rating = rating / count;

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    public static int getOwnRating(final Resource resource, final String userId) {
        int rating = 0;


        final Resource r = resource.getResourceResolver().getResource(resource.getParent() + "/ratings/" + userId);
        if ( r != null ) {
            final ValueMap vm = r.getValueMap();
            rating = vm.get(SlingshotConstants.PROPERTY_RATING, 0);
        }
        return rating;


    }

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  @Test
  public void testGetValue() {
    log.info("testGetValue");
    Resource resource = SlingFunctions.getResource(resolver, TEST_PATH);
    ValueMap properties = resource.adaptTo(ValueMap.class);


    log.info("Testing using class coersion");
    Date retrievedDate = SlingFunctions.getValue(properties, "date",
        Date.class);
    assertEquals(date, retrievedDate);

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        final Map<?, ?> map = res.adaptTo(Map.class);
        assertNotNull("Expected Map adapter", map);
        assertEquals(target, map.get(RedirectResource.PROP_SLING_TARGET));
        assertEquals(status, ((Integer) map.get(RedirectResource.PROP_SLING_STATUS)).intValue());


        final ValueMap valueMap = res.adaptTo(ValueMap.class);
        assertNotNull("Expected ValueMap adapter", valueMap);
        assertEquals(target, valueMap.get(RedirectResource.PROP_SLING_TARGET));
        assertEquals(status, ((Integer) valueMap.get(RedirectResource.PROP_SLING_STATUS)).intValue());
        assertEquals(status, valueMap.get(RedirectResource.PROP_SLING_STATUS, Integer.class).intValue());


        final PersistableValueMap persistableValueMap = res.adaptTo(PersistableValueMap.class);
        assertNull("Unexpected PersistableValueMap adapter",
            persistableValueMap);
    }

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        pvm.put(PROP2, VALUE2);
        pvm.put(PROP3, VALUE3);
        getSession().save();


        // read with property map
        final ValueMap vm = new JcrModifiableValueMap(testNode, null);
        assertEquals(VALUE, vm.get(TEST_PATH));
        assertEquals(VALUE1, vm.get(PROP1));
        assertEquals(VALUE2, vm.get(PROP2));
        assertEquals(VALUE3, vm.get(PROP3));


        // read properties
        assertEquals(VALUE, testNode.getProperty(TEST_PATH).getString());
        assertEquals(VALUE1, testNode.getProperty(PROP1).getString());
        assertEquals(VALUE2, testNode.getProperty(PROP2).getString());

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        pvm.put("jcr:a:b", VALUE3);
        pvm.put("jcr:", VALUE3);
        getSession().save();


        // read with property map
        final ValueMap vm = new JcrModifiableValueMap(testNode, null);
        assertEquals(VALUE3, vm.get(PROP3));
        assertEquals(VALUE3, vm.get("jcr:a:b"));
        assertEquals(VALUE3, vm.get("jcr:"));


        // read properties
        assertEquals(VALUE3, testNode.getProperty(PROP3).getString());
        assertEquals(VALUE3, testNode.getProperty("jcr:"+Text.escapeIllegalJcrChars("a:b")).getString());
        assertEquals(VALUE3, testNode.getProperty(Text.escapeIllegalJcrChars("jcr:")).getString());

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        pvm.put(PROP2, dateValue2);
        pvm.put(PROP3, calendarValue3);
        getSession().save();


        // read with property map
        final ValueMap vm = new JcrModifiableValueMap(testNode, null);
        assertEquals(dateValue1, vm.get(PROP1, Date.class));
        assertEquals(calendarValue1, vm.get(PROP1, Calendar.class));
        assertEquals(dateValue2, vm.get(PROP2, Date.class));
        assertEquals(calendarValue2, vm.get(PROP2, Calendar.class));
        assertEquals(dateValue3, vm.get(PROP3, Date.class));
        assertEquals(calendarValue3, vm.get(PROP3, Calendar.class));


        // check types
        assertTrue(vm.get(PROP1) instanceof Calendar);
        assertTrue(vm.get(PROP2) instanceof InputStream);
        assertTrue(vm.get(PROP3) instanceof Calendar);


        // read properties
        assertEquals(calendarValue1, testNode.getProperty(PROP1).getDate());
        assertEquals(calendarValue3, testNode.getProperty(PROP3).getDate());

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