We want to display FAQs dynamically on the page based on the tags, so I wrote the Java code for that, but when I looked at the log statements, I saw that it doesn’t go inside while loop only, and also listChildren doesn’t return, so please look at the below Java code and log statements, and confirm me if I missed anything.
faqImpl.java
package com.amex.gcdt.models;
import java.util.HashMap;
import java.util.Map;
import java.lang.String;
import java.util.*;
import java.util.Collection;
import java.util.Collections;
import com.day.cq.tagging.Tag;
import javax.annotation.PostConstruct;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ValueMap;
import org.apache.sling.models.annotations.DefaultInjectionStrategy;
import org.apache.sling.models.annotations.Exporter;
import org.apache.sling.models.annotations.ExporterOption;
import org.apache.sling.models.annotations.Model;
import org.apache.sling.models.annotations.injectorspecific.ScriptVariable;
import org.apache.sling.models.annotations.injectorspecific.*;
import org.apache.sling.api.resource.*;
import com.day.cq.tagging.TagManager;
import com.day.cq.tagging.*;
import javax.jcr.Node;
import java.util.Objects;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.day.cq.wcm.api.PageManager;
import com.day.cq.wcm.api.Page;
import com.amex.gcdt.constants.FaqFragmentConstants;
import com.adobe.cq.dam.cfm.ContentFragment;
import com.adobe.cq.export.json.ComponentExporter;
import com.adobe.cq.export.json.ExporterConstants;
import com.day.cq.search.*;
import com.day.cq.search.result.*;
import com.day.cq.wcm.api.Page;
import com.day.cq.dam.api.*;
import javax.jcr.*;
import javax.inject.*;
import org.osgi.service.component.annotations.*;
import org.apache.commons.collections.IteratorUtils;
import org.apache.commons.collections4.ListUtils;
import java.util.Iterator;
@Model(adaptables = { SlingHttpServletRequest.class }, adapters = { FaqImpl.class,
ComponentExporter.class }, resourceType = FaqFragmentConstants.RESOURCE_TYPE, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)
@exporter(name = ExporterConstants.SLING_MODEL_EXPORTER_NAME, selector = ExporterConstants.SLING_MODEL_SELECTOR, extensions = ExporterConstants.SLING_MODEL_EXTENSION, options = {
@ExporterOption(name = "MapperFeature.SORT_PROPERTIES_ALPHABETICALLY", value = FaqFragmentConstants.TRUE),
@ExporterOption(name = "SerializationFeature.WRITE_DATES_AS_TIMESTAMPS", value = FaqFragmentConstants.FALSE) })
public class FaqImpl implements ComponentExporter {
private static final Logger LOG = LoggerFactory.getLogger(FaqImpl.class);
@Self
private SlingHttpServletRequest request;
@ScriptVariable
private ValueMap properties;
private Page currentPage;
@SlingObject
private ResourceResolver resourceResolver;
private Tag faqTagObject;
String[] selectors;
Resource faqFragment;
List<Resource> faqFragments;
Boolean isFaqPage = FaqFragmentConstants.BOOLEAN_FALSE;
//PostConstruct method called after object creation
@PostConstruct
protected void init() {
try {
LOG.info("Starting FaqImpl initialization...");
// Get the FAQ path from component properties or page properties
String faqPath = properties.get(FaqFragmentConstants.FAQ_PATH, String.class);
if (faqPath == null) {
ValueMap valueMap = currentPage.getContentResource().adaptTo(ValueMap.class);
faqPath = valueMap.get(FaqFragmentConstants.FAQ_PATH, "");
}
LOG.info("FAQ Path: {}", faqPath);
// Get selectors from the request URL
selectors = request.getRequestPathInfo().getSelectors();
faqFragments = new ArrayList<>();
LOG.info("Selectors: {}", (selectors != null ? Arrays.asList(selectors) : "No selectors"));
// Check if the current page is an FAQ page based on selectors
if (selectors.length > 0) {
isFaqPage = FaqFragmentConstants.BOOLEAN_TRUE;
String cfPath = faqPath + "/" + selectors[0];
faqFragment = resourceResolver.getResource(cfPath + FaqFragmentConstants.MASTER_DATA);
LOG.info("FAQ Page detected. Added FAQ fragment: {}", faqFragment.getPath());
faqFragments.add(faqFragment);
} else {
// Get the FAQ tag from component properties
String faqTag = properties.get(FaqFragmentConstants.FAQ_TAG, String.class);
LOG.info("FAQ Tag: {}", faqTag);
ResourceResolver resourceResolver = request.getResourceResolver();
TagManager tagManager = resourceResolver.adaptTo(TagManager.class);
// Resolve the faqTag to obtain the Tag object
faqTagObject = tagManager.resolve(faqTag);
LOG.info("FAQ Tag Object: {}", faqTagObject);
if (faqTagObject != null) {
// Find resources directly associated with the tag
Resource tagResource = resourceResolver.getResource(faqTagObject.getPath());
LOG.info("Retrieved Resource for Tag: {}", tagResource.getPath());
Iterator<Resource> taggedResources = tagResource.listChildren();
// LOG.info("Retrieved Resource for Tag: {}", tagResource.getPath());
List<Resource> taggedResourcesList = IteratorUtils.toList(taggedResources);
int taggedResourcesSize = taggedResourcesList.size();
LOG.info("Size of Tagged Resources: {}", taggedResourcesSize);
LOG.info("Entering iterator loop for taggedResources");
while (taggedResources.hasNext()) {
Resource taggedResource = taggedResources.next();
LOG.info("Processing tagged resource: {}", taggedResource.getPath());
LOG.info("Tagged Resource: {}", taggedResource.getPath());
// Assuming the master data is stored as a child node named 'master'
Resource faqFragment = taggedResource.getChild(FaqFragmentConstants.MASTER_DATA);
if (faqFragment != null) {
LOG.info("Adding FAQ fragment: {}", faqFragment.getPath());
faqFragments.add(faqFragment);
} else {
LOG.warn("Master data not found for tagged resource: {}", taggedResource.getPath());
}
LOG.info("Processed tagged resource: {}", taggedResource.getPath());
}
LOG.info("Exiting iterator loop for taggedResources");
} else {
LOG.warn("FAQ TagObject is null for faqTag: {}", faqTag);
}
}
LOG.info("FaqImpl initialization completed successfully.");
LOG.info("Is FAQ Page: {}", isFaqPage);
LOG.info("FAQ Fragments: {}", faqFragments);
} catch (Exception e) {
LOG.error("Exception occurred during init", e);
}
}
public List<Resource> getFaqFragments() {
return faqFragments;
}
public Resource getFaqFragment() {
return faqFragment;
}
public Boolean getFaqPage() {
return isFaqPage;
}
public String getFaqPath() {
String reqpath = request.getRequestURI();
if (reqpath.contains(".html")) {
reqpath = reqpath.substring(0, reqpath.lastIndexOf("/") + 1) + "faq";
} else {
reqpath = reqpath + "faq";
}
return reqpath;
}
public String getExportedType() {
return "gcdtfaqdetails";
}
}
======
faqFragmentsConstants.
package com.amex.gcdt.constants;
public class FaqFragmentConstants {
public static final String RESOURCE_TYPE = "enterprise/components/content/faq";
public static final String TRUE = "true";
public static final String FALSE = "false";
public static final Boolean BOOLEAN_FALSE = false;
public static final Boolean BOOLEAN_TRUE = true;
public static final String FAQ_PATH = "faqPath";
public static final String MASTER_DATA = "/jcr:content/data";
public static final String FAQ_TAG = "faqTag";
public static final String METADATA_TAGS = "jcr:content/metadata/cq:tags";
}
