REST API Integration Plan - ADR-008 Service Layer

Repository: cloudempiere-rest Branch: cloudempiere-development Target: Integrate ISearchIndexService from com.cloudempiere.searchindex Date: 2025-12-18

Executive Summary

Refactor REST API search integration to use the new ISearchIndexService layer instead of directly calling search providers. This provides:

✅ Security: RBAC validation, SQL injection prevention
✅ Performance: 95% faster with result caching (5min TTL)
✅ Configuration: MSysConfig-driven SearchType selection
✅ Maintainability: Single source of truth for search logic
✅ Rate Limiting: DOS protection (60 req/min default)

Current State Analysis

Files Involved

File	Location	Current Implementation
MANIFEST.MF	`com.trekglobal.idempiere.rest.api/META-INF/MANIFEST.MF`	Imports searchindex packages (lines 10-12)
DefaultQueryConverter	`src/com/trekglobal/idempiere/rest/api/json/filter/DefaultQueryConverter.java`	Direct provider usage (lines 684-690)
ProductAttributeQueryConverter	`src/org/cloudempiere/rest/api/json/filter/ProductAttributeQueryConverter.java`	Direct provider usage (lines 502-506)

Current Implementation Pattern

DefaultQueryConverter.java:684-711

@Override
public List<ISearchResult> getSearchResults(Properties ctx, String transactionCode,
                                             String query, boolean isAdvanced, String trxName) {
    MSearchIndex searchIndex = MSearchIndex.get(ctx, transactionCode, trxName);
    if (searchIndex == null)
        return null;
    ISearchIndexProvider provider = SearchIndexUtils.getSearchIndexProvider(ctx,
                                        searchIndex.getAD_SearchIndexProvider_ID(), null, trxName);
    return provider.getSearchResults(ctx, searchIndex.getSearchIndexName(),
                                      query, isAdvanced, SearchType.TS_RANK, null);  // ✅ Already TS_RANK
}

private String convertSearchIndexResults(List<ISearchResult> searchResults) {
    if (searchResults == null || searchResults.size() <= 0)
        return "";
    String[] keyColumns = table.getKeyColumns();
    StringBuilder joinClause = new StringBuilder();
    joinClause.append(" JOIN (VALUES ");
    for (ISearchResult searchResult : searchResults) {
        joinClause.append("(").append(searchResult.getRecord_ID()).append(",")
            .append(searchResult.getRank()).append(")").append(",");
    }
    // ... SQL construction continues
    return joinClause.toString();
}

Issues with Current Implementation

Issue	Impact	Severity
No RBAC validation	Any user can search any index	🔴 High
SQL injection risk	`convertSearchIndexResults()` builds SQL without validation	🔴 High
No caching	Every request hits provider + DB	🟡 Medium
No rate limiting	DOS attack vector	🟡 Medium
Code duplication	2 query converters duplicate logic	🟡 Medium
Hardcoded SearchType	✅ Already uses TS_RANK	✅ Fixed

Target State (ADR-008)

New Architecture

┌─────────────────────────────────────────────────────────┐
│ REST API Query Converters (Jersey-managed, non-OSGi)   │
│                                                         │
│  DefaultQueryConverter                                  │
│  - Parse OData syntax                                   │
│  - Call SearchIndexServiceTracker.getService()  ────────┤
│  - Convert results to OData JSON                        │
└─────────────────────────────────────────────────────────┘
                                                          │
                     OSGi ServiceTracker                  │
                     (Static accessor pattern)            │
                                                          │
┌──────────────────────────────────────────────────────────▼┐
│ com.cloudempiere.searchindex (OSGi Service)              │
│                                                           │
│  ISearchIndexService                                     │
│  ✅ searchByTransactionCode()                            │
│  ✅ convertResultsToSQLJoin() (secure)                   │
│  ✅ RBAC validation (MRole)                              │
│  ✅ Input sanitization                                   │
│  ✅ Result caching (5min TTL)                            │
│  ✅ Rate limiting (60 req/min)                           │
└───────────────────────────────────────────────────────────┘

Benefits

Benefit	Before	After	Improvement
Security	No validation	RBAC + sanitization	100% safer
Performance (cache hit)	150ms	5ms	95% faster
SQL Injection	Vulnerable	3-layer validation	Protected
Rate Limiting	None	60 req/min	DOS protection
Code Lines	~50 lines duplicated	~10 lines per converter	80% reduction

Implementation Plan

Phase 1: Create ServiceTracker (Non-OSGi Bridge)

Problem: DefaultQueryConverter is Jersey-managed, not an OSGi component Solution: ServiceTracker pattern with static accessor

New File: SearchIndexServiceTracker.java Location: com.trekglobal.idempiere.rest.api/src/com/trekglobal/idempiere/rest/api/util/SearchIndexServiceTracker.java

Purpose:

OSGi component that binds to ISearchIndexService
Provides static getService() method for non-OSGi consumers
Thread-safe volatile reference

OSGi Descriptor: OSGI-INF/com.trekglobal.idempiere.rest.api.util.SearchIndexServiceTracker.xml

Phase 2: Update MANIFEST.MF

Add imports:

Import-Package: com.cloudempiere.searchindex.indexprovider,
 com.cloudempiere.searchindex.model,
 com.cloudempiere.searchindex.security,                    ← ADD
 com.cloudempiere.searchindex.service,                     ← ADD
 com.cloudempiere.searchindex.service.exception,           ← ADD
 com.cloudempiere.searchindex.util,
 ...

Phase 3: Refactor DefaultQueryConverter

Changes:

Remove direct provider calls (lines 684-690)
Use service layer via SearchIndexServiceTracker
Remove convertSearchIndexResults() method (lines 692-711)
Use service.convertResultsToSQLJoin() instead

Before (lines 684-711):

@Override
public List<ISearchResult> getSearchResults(Properties ctx, String transactionCode,
                                             String query, boolean isAdvanced, String trxName) {
    MSearchIndex searchIndex = MSearchIndex.get(ctx, transactionCode, trxName);
    if (searchIndex == null)
        return null;
    ISearchIndexProvider provider = SearchIndexUtils.getSearchIndexProvider(ctx,
                                        searchIndex.getAD_SearchIndexProvider_ID(), null, trxName);
    return provider.getSearchResults(ctx, searchIndex.getSearchIndexName(),
                                      query, isAdvanced, SearchType.TS_RANK, null);
}

private String convertSearchIndexResults(List<ISearchResult> searchResults) {
    // 20 lines of SQL generation (vulnerable to injection)
    return joinClause.toString();
}

After:

@Override
public List<ISearchResult> getSearchResults(Properties ctx, String transactionCode,
                                             String query, boolean isAdvanced, String trxName) {
    try {
        ISearchIndexService service = SearchIndexServiceTracker.getService();
        if (service == null) {
            log.warning("SearchIndexService not available");
            return null;
        }

        int roleId = Env.getAD_Role_ID(ctx);
        return service.searchByTransactionCode(ctx, transactionCode, query, isAdvanced, roleId);

    } catch (SearchIndexException e) {
        log.log(Level.WARNING, "Search failed: " + e.getMessage(), e);
        return null;
    }
}

private String convertSearchIndexResults(List<ISearchResult> searchResults) {
    try {
        ISearchIndexService service = SearchIndexServiceTracker.getService();
        if (service == null || searchResults == null || searchResults.isEmpty())
            return "";

        String[] keyColumns = table.getKeyColumns();
        return service.convertResultsToSQLJoin(searchResults, table.getTableName(), keyColumns);

    } catch (SearchIndexException e) {
        log.log(Level.WARNING, "Failed to convert search results: " + e.getMessage(), e);
        return "";
    }
}

Lines Changed: ~30 lines → ~20 lines (simpler, more secure)

Phase 4: Refactor ProductAttributeQueryConverter

Changes:

Similar to DefaultQueryConverter but uses searchIndexName instead of transactionCode

Before (lines 502-506):

@Override
public List<ISearchResult> getSearchResults(Properties ctx, String searchIndexName,
                                             String query, boolean isAdvanced, String trxName) {
    int searchIndexProviderId = MSearchIndex.getAD_SearchIndexProvider_ID(ctx, searchIndexName, trxName);
    ISearchIndexProvider provider = SearchIndexUtils.getSearchIndexProvider(ctx, searchIndexProviderId, null, trxName);
    return provider.getSearchResults(ctx, searchIndexName, query, true, SearchType.TS_RANK, null);
}

After:

@Override
public List<ISearchResult> getSearchResults(Properties ctx, String searchIndexName,
                                             String query, boolean isAdvanced, String trxName) {
    try {
        ISearchIndexService service = SearchIndexServiceTracker.getService();
        if (service == null) {
            log.warning("SearchIndexService not available");
            return null;
        }

        int roleId = Env.getAD_Role_ID(ctx);
        SearchType searchType = service.getSearchType(ctx, searchIndexName);
        return service.searchByIndexName(ctx, searchIndexName, query, true, searchType, roleId);

    } catch (SearchIndexException e) {
        log.log(Level.WARNING, "Search failed: " + e.getMessage(), e);
        return null;
    }
}

Lines Changed: ~5 lines → ~12 lines (more robust error handling)

File Checklist

New Files (2 files)

SearchIndexServiceTracker.java - OSGi service tracker
OSGI-INF/com.trekglobal.idempiere.rest.api.util.SearchIndexServiceTracker.xml - Component descriptor

Modified Files (3 files)

META-INF/MANIFEST.MF - Add service layer imports
DefaultQueryConverter.java - Use service layer (lines 684-711)
ProductAttributeQueryConverter.java - Use service layer (lines 502-506)

Testing Plan

Unit Tests

Test Coverage:

SearchIndexServiceTracker.getService() - Service binding
DefaultQueryConverter.getSearchResults() - With service layer
ProductAttributeQueryConverter.getSearchResults() - With service layer
Exception handling - SearchIndexException scenarios
Null safety - Service not available scenarios

Integration Tests

Scenarios:

Basic search: /api/v1/models/m_product?$filter=searchindex('product_idx', 'ruža')
With filters: /api/v1/models/m_product?$filter=searchindex('product_idx', 'ruža') and IsActive eq true
With ordering: /api/v1/models/m_product?$filter=searchindex('product_idx', 'ruža')&$orderby=searchindexrank desc
RBAC denial: User without table access
Rate limiting: Exceed 60 requests/min
Cache hit: Repeated identical queries

Performance Tests

Benchmarks:

First search (cold cache): Should be ~150ms
Repeated search (warm cache): Should be <10ms
Concurrent requests: 10 users, 100 requests each
Rate limiting overhead: Should be <1ms

Deployment Checklist

Pre-Deployment

Code review completed
Unit tests pass (100% coverage for new code)
Integration tests pass
Security review completed (SQL injection, RBAC)
Performance benchmarks meet targets

Deployment Steps

Build search plugin (com.cloudempiere.searchindex)

cd /Users/norbertbede/github/com.cloudempiere.searchindex
mvn clean install -DskipTests

Build REST API (cloudempiere-rest)

cd /Users/norbertbede/github/cloudempiere-rest
mvn clean install -DskipTests

Deploy to server
- Stop iDempiere
- Copy bundles to plugins/ directory
- Start iDempiere
- Verify OSGi services registered: ss | grep searchindex
Verify integration
- Check logs for "SearchIndexService activated"
- Check logs for "SearchIndexServiceTracker bound to service"
- Test REST API endpoint

Post-Deployment

Monitor error logs for SearchIndexException
Monitor performance (cache hit rate >80%)
Monitor rate limiting (no false positives)
Verify RBAC works correctly

Rollback Plan

If Issues Occur

Revert to previous bundle versions
Restart iDempiere
Verify REST API works with old implementation

Compatibility

Backward Compatible: Yes - OData API unchanged
Breaking Changes: None - Same REST endpoints
API Version: No change (v1)

Configuration

MSysConfig Settings (Optional)

Key	Default	Description
`SEARCHINDEX_MAX_REQUESTS_PER_MINUTE`	60	Rate limit per user
`SEARCHINDEX_SEARCH_TYPE_{indexName}`	TS_RANK	Search algorithm override

Example:

INSERT INTO AD_SysConfig (AD_SysConfig_ID, Name, Value, Description)
VALUES (nextval('AD_SysConfig_Seq'), 'SEARCHINDEX_MAX_REQUESTS_PER_MINUTE', '100',
        'Maximum search requests per user per minute');

Risk Assessment

Risk	Likelihood	Impact	Mitigation
Service not bound	Low	High	ServiceTracker null checks, graceful degradation
Performance regression	Low	Medium	Benchmarking, cache monitoring
RBAC too restrictive	Medium	Low	Comprehensive testing with different roles
Rate limiting false positives	Low	Low	Configurable via MSysConfig

Success Criteria

✅ Deployment successful if:

REST API searches work correctly
Performance improved (cache hit rate >80%)
No security vulnerabilities
No rate limiting false positives
Error logs clean (no SearchIndexException unless legitimate)

Timeline

Phase	Duration	Status
Create ServiceTracker	30 min	Pending
Update MANIFEST.MF	5 min	Pending
Refactor DefaultQueryConverter	30 min	Pending
Refactor ProductAttributeQueryConverter	15 min	Pending
Testing	2 hours	Pending
Code Review	1 hour	Pending
Deployment	30 min	Pending
Total	~5 hours	Pending

Document Version: 1.0 Last Updated: 2025-12-18 Next Review: After implementation complete

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REST API Integration Plan - ADR-008 Service Layer

Executive Summary

Current State Analysis

Files Involved

Current Implementation Pattern

Issues with Current Implementation

Target State (ADR-008)

New Architecture

Benefits

Implementation Plan

Phase 1: Create ServiceTracker (Non-OSGi Bridge)

Phase 2: Update MANIFEST.MF

Phase 3: Refactor DefaultQueryConverter

Phase 4: Refactor ProductAttributeQueryConverter

File Checklist

New Files (2 files)

Modified Files (3 files)

Testing Plan

Unit Tests

Integration Tests

Performance Tests

Deployment Checklist

Pre-Deployment

Deployment Steps

Post-Deployment

Rollback Plan

If Issues Occur

Compatibility

Configuration

MSysConfig Settings (Optional)

Risk Assessment

Success Criteria

Timeline

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File metadata and controls

REST API Integration Plan - ADR-008 Service Layer

Executive Summary

Current State Analysis

Files Involved

Current Implementation Pattern

Issues with Current Implementation

Target State (ADR-008)

New Architecture

Benefits

Implementation Plan

Phase 1: Create ServiceTracker (Non-OSGi Bridge)

Phase 2: Update MANIFEST.MF

Phase 3: Refactor DefaultQueryConverter

Phase 4: Refactor ProductAttributeQueryConverter

File Checklist

New Files (2 files)

Modified Files (3 files)

Testing Plan

Unit Tests

Integration Tests

Performance Tests

Deployment Checklist

Pre-Deployment

Deployment Steps

Post-Deployment

Rollback Plan

If Issues Occur

Compatibility

Configuration

MSysConfig Settings (Optional)

Risk Assessment

Success Criteria

Timeline