@Required
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String handlerName;

    /** Parameters passed to the data handler */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String handlerParameter;

    /** Script for custom data processing logic */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String handlerScript;

    }

    @Test
    public void test_getExtensionFromMimeType_photoshopApp() {
        assertEquals(".psd", generator.getExtensionFromMimeType("application/photoshop"));
    }

    // Tests for null and empty input
    @Test
    public void test_getExtensionFromMimeType_null() {
        assertEquals("", generator.getExtensionFromMimeType(null));
    }

    @Test
    public void test_getExtensionFromMimeType_empty() {

#### Document Migration

**Step 1: Export from Source**

Export documents from your existing Elasticsearch/OpenSearch cluster:

```bash
# Using elasticdump
elasticdump \
  --input=http://old-es-server:9200/my-index \
  --output=documents.json \
  --type=data
```

**Step 2: Convert to Fess Format**

Transform documents to include Fess required fields. Example transformation script:

    @CustomSize(maxKey = "form.admin.max.input.size")
    public String urls;

    /**
     * URL patterns to include during crawling.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String includedUrls;

    /**
     * URL patterns to exclude during crawling.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String excludedUrls;

    /**

"content","data","datalist","dd","decorator","del","details","dfn","dialog","dir","div","dl","dt","element","em","fieldset","figcaption","figure","font","footer","form","h1","h2","h3","h4","h5","h6","head","header","hgroup","hr","html","i","img","input","ins","kbd","label","legend","li","main","map","mark","marquee","menu","menuitem","meter","nav","nobr","ol","optgroup","option","output","p","picture","pre","progress","q","rp","rt","ruby","s","samp","search","section","select","shadow","slot","s...

            }
        }
        return params;
    }

    /**
     * Get the extracted data.
     * @param extractor The extractor.
     * @param in The input stream.
     * @param params The parameters.
     * @return The extracted data.
     */
    protected ExtractData getExtractData(final Extractor extractor, final InputStream in, final Map<String, String> params) {

    @CustomSize(maxKey = "form.admin.max.input.size")
    public String paths;

    /** The paths to include during crawling (pattern-based). */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String includedPaths;

    /** The paths to exclude during crawling (pattern-based). */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String excludedPaths;

.input-group-append > .btn,\n.input-group > .input-group-append > .input-group-text,\n.input-group > .input-group-prepend:not(:first-child) > .btn,\n.input-group > .input-group-prepend:not(:first-child) > .input-group-text,\n.input-group > .input-group-prepend:first-child > .btn:not(:first-child),\n.input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child) {\n  border-top-left-radius: 0;\n  border-bottom-left-radius: 0;\n}\n\n.custom-control {\n  position: relative;\n ...

     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String includedPaths;

    /**
     * The paths to exclude for this label type.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String excludedPaths;

    /**
     * The permissions required to view this label type.
     */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String permissions;

    /**

import org.gradle.api.file.ProjectLayout
import org.gradle.api.file.RegularFileProperty
import org.gradle.api.provider.Property
import org.gradle.api.tasks.CacheableTask
import org.gradle.api.tasks.Input
import org.gradle.api.tasks.InputFile
import org.gradle.api.tasks.InputFiles
import org.gradle.api.tasks.OutputFile
import org.gradle.api.tasks.PathSensitive
import org.gradle.api.tasks.PathSensitivity