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

org.apache.sling.api.resource.ResourceResolver

The ResourceResolver defines the service API which may be used to resolve {@link Resource} objects. The resource resolver is available tothe request processing servlet through the {@link org.apache.sling.api.SlingHttpServletRequest#getResourceResolver()}method. A resource resolver can also be created through the {@link ResourceResolverFactory}.

The ResourceResolver is also an {@link Adaptable} to getadapters to other types. A JCR based resource resolver might support adapting to the JCR Session used by the resolver to access the JCR Repository.

A ResourceResolver is generally not thread safe! As a consequence, an application which uses the resolver, its returned resources and/or objects resulting from adapting either the resolver or a resource, must provide proper synchronization to ensure no more than one thread concurrently operates against a single resolver, resource or resulting objects.

Accessing Resources

This interface defines two kinds of methods to access resources: The resolve methods and the getResource methods. The difference lies in the algorithm applied to find the requested resource and in the behavior in case a resource cannot be found:

Method Kind	Access Algorithm	Missing Resource
resolve	Path is always assumed to be absolute. Uses elaborate resource resolution algorithm. This kind of method is intended to resolve request URLs to resources.	Returns {@link NonExistingResource}
getResource	Directly access resources with absolute path. For relative paths, the {@link #getSearchPath() search path} is applied. This method is intended tobe used by request processing scripts to access further resources as required.	Returns `null`

Lifecycle

A Resource Resolver has a life cycle which begins with the creation of the Resource Resolver using any of the factory methods and ends with calling the {@link #close()} method. It is very important to call the {@link #close()}method once the resource resolver is not used any more to ensure any system resources are properly cleaned up.

To check whether a Resource Resolver can still be used, the {@link #isLive()}method can be called.

Resource Resolver Attributes

The authentication info properties provided to the {@link ResourceResolverFactory#getResourceResolver(Map)}, {@link ResourceResolverFactory#getAdministrativeResourceResolver(Map)}, or {@link #clone(Map)} are available through the {@link #getAttributeNames()}and {@link #getAttribute(String)} methods with the exception of securitysensitive properties like {@link ResourceResolverFactory#PASSWORD} which isnot exposed.

            put(true, PropertyType.BOOLEAN);
            put(1000L, PropertyType.LONG);
            put(BigDecimal.TEN, PropertyType.DECIMAL);
        }};


        final ResourceResolver resolver = this.context.mock(ResourceResolver.class);
        for (final Entry<Object, Integer> data : testData.entrySet()) {
            final String stringValue = data.getKey().toString();
            final long stringByteLength =  stringValue.getBytes("UTF-8").length;
            final Property property = this.context.mock(Property.class, stringValue);
            this.context.checking(new Expectations() {{

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     * Test getting a resolver.
     * @throws LoginException
     */
    @Test
    public void testGetResolver() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        Assert.assertNotNull(resourceResolver);
        Map<String, Object> authenticationInfo = new HashMap<String, Object>();
        resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(authenticationInfo);
        Assert.assertNotNull(resourceResolver);
    }

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     * Misceleneous coverage.
     * @throws LoginException
     */
    @Test
    public void testResolverMisc() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        try {
            resourceResolver.getAttribute(null);
            Assert.fail("Should have thrown a NPE");
        } catch ( NullPointerException e) {
            // this is expected.
        }
        Assert.assertArrayEquals(new String[]{"/apps/","/libs/"}, resourceResolver.getSearchPath());
    }

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     */
    @Deprecated
    public static String getResourceSuperType(Resource resource) {
        String resourceSuperType = resource.getResourceSuperType();
        if ( resourceSuperType == null ) {
            final ResourceResolver resolver = resource.getResourceResolver();


            // try explicit resourceSuperType resource
            final String resourceType = resource.getResourceType();
            resourceSuperType = ResourceUtil.getResourceSuperType(resolver, resourceType);
        }

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     * Test various administrative resource resolvers.
     * @throws LoginException
     */
    @Test
    public void testGetAuthenticatedResolve() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(null);
        Assert.assertNotNull(resourceResolver);
        Map<String, Object> authenticationInfo = new HashMap<String, Object>();


        resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(authenticationInfo);
        Assert.assertNotNull(resourceResolver);

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     * Test getResource for a resource provided by a resource provider.
     * @throws LoginException
     */
    @Test
    public void testGetResource() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        Assert.assertNotNull(resourceResolver);
        Resource singleResource = buildResource("/single/test", EMPTY_RESOURCE_LIST, resourceResolver, resourceProvider);
        Resource resource = resourceResolver.getResource("/single/test");
        Assert.assertEquals(singleResource, resource);
    }

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     * Test getResource where path contains intermediate . verifying fix for SLING-864
     * @throws LoginException
     */
    @Test
    public void testGetResourceSLING864() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        Assert.assertNotNull(resourceResolver);
        Resource singleResource = buildResource("/single/test.with/extra.dots/inthepath", EMPTY_RESOURCE_LIST,resourceResolver, resourceProvider);
        Resource resource = resourceResolver.getResource("/single/test.with/extra.dots/inthepath");
        Assert.assertEquals(singleResource, resource);
    }

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     * Test search paths
     * @throws LoginException
     */
    @Test
    public void testRelativeResource() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        Assert.assertNotNull(resourceResolver);
        Resource appResource = buildResource("/apps/store/inventory", EMPTY_RESOURCE_LIST, resourceResolver, appsResourceProvider);
        Resource libResource = buildResource("/libs/store/catalog", EMPTY_RESOURCE_LIST, resourceResolver, appsResourceProvider);
        Resource testResource = resourceResolver.getResource("store/inventory");
        Assert.assertEquals(appResource, testResource);
        testResource = resourceResolver.getResource("store/catalog");
        Assert.assertEquals(libResource, testResource);
    }

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     * Test getResource for a resource provided by a factory provider.
     * @throws LoginException
     */
    @Test
    public void testGetFactoryResource() throws LoginException {
        ResourceResolver resourceResolver = resourceResolverFactory.getResourceResolver(null);
        Assert.assertNotNull(resourceResolver);


        Resource factoryResource = buildResource("/factory/test", EMPTY_RESOURCE_LIST, resourceResolver, factoryResourceProvider);
        Resource resource = resourceResolver.getResource("/factory/test");
        Assert.assertEquals(factoryResource, resource);
    }

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                                  final ScriptContext context,
                                  final String scriptName) {
      final SlingBindings slingBindings = new SlingBindings();
        slingBindings.putAll(bindings);


        ResourceResolver resolver = (ResourceResolver) context.getAttribute(SlingScriptConstants.ATTR_SCRIPT_RESOURCE_RESOLVER,
                SlingScriptConstants.SLING_SCOPE);
        if ( resolver == null ) {
            resolver = scriptHelper.getScript().getScriptResource().getResourceResolver();
        }
        final SlingIOProvider io = this.ioProvider;
        final JspFactoryHandler jspfh = this.jspFactoryHandler;


        // abort if JSP Support is shut down concurrently (SLING-2704)
        if (io == null || jspfh == null) {
            logger.warn("callJsp: JSP Script Engine seems to be shut down concurrently; not calling {}",
                    scriptHelper.getScript().getScriptResource().getPath());
            return;
        }


        final ResourceResolver oldResolver = io.setRequestResourceResolver(resolver);
        jspfh.incUsage();
    try {
      final JspServletWrapper errorJsp = getJspWrapper(scriptName, slingBindings);
      errorJsp.service(slingBindings);

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