pdf_oxide 0.3.2

# Continuation Guide: Resuming Phase 8 Work

**Last Session**: January 15, 2026
**Build Status**: Native library build in progress
**Session Status**: Phase 7 Complete, Phase 8 ~30% complete

## Quick Start for Next Session

### 1. Check Build Status Immediately

```bash
# Check if native library exists
ls -lh /home/yfedoseev/projects/pdf_oxide/target/release/libpdf_oxide_jni.so

# Or check if cargo is still running
ps aux | grep "cargo build.*java" | grep -v grep
```

### 2. If Build Completed: Proceed to Maven Build

```bash
# Navigate to project
cd /home/yfedoseev/projects/pdf_oxide

# Organize native libraries
./scripts/build-natives.sh --current --release

# Verify organization
ls -la java/src/main/resources/natives/

# Build Java bindings
cd java
mvn clean verify
mvn test
mvn package

# Verify JAR creation
ls -lh target/pdf-oxide-*.jar
```

### 3. If Build Still Running: Let It Complete

The build typically takes:
- First time: 5-10 minutes (links all dependencies)
- Incremental: 1-2 minutes (only recompiles changed code)

### 4. Once JAR is Built: Run Integration Tests

```bash
cd java
mvn test -Dtest=FullWorkflowTest
```

## Key Files to Review

| File | Purpose | Size |
|------|---------|------|
| `PHASE_8_GUIDE.md` | 500+ line implementation plan | [Link](#) |
| `PHASE_8_STATUS.md` | Current progress status | [Link](#) |
| `SESSION_SUMMARY.md` | This session's work summary | [Link](#) |
| `java/GETTING_STARTED.md` | Developer quick start | [Link](#) |
| `scripts/build-natives.sh` | Build automation | 300+ lines |
| `.github/workflows/java-build.yml` | CI/CD pipeline | 400+ lines |

## Current Work Status Dashboard

### Phase Completion
```
Phase 1-2: Completed (Previous sessions)
Phase 3-6: ✅ Complete
Phase 7: ✅ Complete (Just finished)
Phase 8: 🔄 In Progress (30%)
```

### Deliverables Checklist

#### Phase 7 - Advanced Features ✅
- ✅ Java Classes: SearchResult, TextSearcher, SearchOptions
- ✅ Java Classes: ValidationResult, PdfAValidator, PdfALevel
- ✅ Java Classes: DigitalSignature, SignatureConfig, CertificateInfo
- ✅ Rust JNI: search.rs, compliance.rs, signatures.rs (All compile)
- ✅ Exception classes and geometry types

#### Phase 8 - Distribution ⏳

**Completed This Session**:
- ✅ Build automation (`build-natives.sh`)
- ✅ CI/CD pipeline (`java-build.yml`)
- ✅ Integration tests (`FullWorkflowTest.java`)
- ✅ Documentation (3 files: GUIDE, STATUS, GETTING_STARTED)

**TODO**:
- ⏳ Native library verification
- ⏳ Maven build and packaging
- ⏳ Example programs (6 total)
- ⏳ Remaining documentation
- ⏳ Performance testing
- ⏳ Memory leak testing

## Critical Paths Forward

### Path 1: Get JAR Working (This Week)

1. **Verify Build** (5 min)
   - Check `target/release/libpdf_oxide_jni.so` exists
   - Check file size (~3-5 MB)

2. **Organize Natives** (2 min)
   ```bash
   ./scripts/build-natives.sh --current --release
   ```

3. **Build Java** (5 min)
   ```bash
   cd java
   mvn clean package
   ```

4. **Test JAR** (2 min)
   ```bash
   mvn test
   java -cp target/pdf-oxide-*.jar com.pdfoxide.util.NativeLibraryLoader
   ```

### Path 2: Create Examples (Next Week)

1. **Create Example Programs** (2-3 hours)
   - `ReadPdf.java` - Extract text
   - `CreatePdf.java` - Create from sources
   - `EditPdf.java` - DOM operations
   - `FormHandling.java` - Form creation
   - `SearchPdf.java` - Text search
   - `ValidatePdfa.java` - PDF/A validation

2. **Create Example Tests** (1 hour)
   - Test each example with sample PDF
   - Verify output correctness

3. **Document Examples** (1 hour)
   - Write README for examples
   - Add comments to example code

### Path 3: Testing & Performance (Week 3)

1. **Run Full Test Suite** (1 hour)
   - Create comprehensive test files
   - Test all API phases
   - Verify coverage >70%

2. **Performance Benchmarks** (2 hours)
   - Create JMH benchmarks
   - Compare vs Rust API
   - Document overhead

3. **Memory Leak Testing** (1 hour)
   - Repeated open/close cycles
   - Garbage collection verification
   - Heap limit testing

## Environment Setup

### Prerequisites (Already Installed)
- ✅ Rust 1.70+
- ✅ Cargo with jni crate
- ✅ JDK 8+
- ✅ Maven 3.6+
- ✅ Git

### Verify Environment
```bash
# Rust
rustc --version
cargo --version

# Java
javac -version
mvn --version

# Git
git --version

# Project structure
ls -la /home/yfedoseev/projects/pdf_oxide/
```

## Build Artifacts Location

### Rust Build Output
```
target/release/libpdf_oxide_jni.so  (Native library)
```

### Java Build Output
```
java/target/pdf-oxide-0.3.0.jar     (Final JAR)
java/target/classes/                (Compiled classes)
java/target/test-classes/           (Test classes)
```

### Native Libraries Organization
```
java/src/main/resources/natives/
├── linux-x86_64/
│   └── libpdf_oxide_jni.so
├── linux-aarch64/
│   └── libpdf_oxide_jni.so
├── macos-x86_64/
│   └── libpdf_oxide_jni.dylib
├── macos-aarch64/
│   └── libpdf_oxide_jni.dylib
├── windows-x86_64/
│   └── pdf_oxide_jni.dll
└── windows-aarch64/
    └── pdf_oxide_jni.dll
```

## Common Commands

### Build Commands
```bash
# Clean build
cargo clean && cargo build --release --features java

# Check compilation
cargo check --features java

# Quick check without full build
cargo check --features java --message-format short

# Build Java
cd java
mvn clean verify
mvn compile
mvn test
mvn package
```

### Testing Commands
```bash
# Run all tests
mvn test

# Run specific test
mvn test -Dtest=FullWorkflowTest

# Run with verbose output
mvn test -e

# Run with coverage
mvn test jacoco:report

# Run integration tests only
mvn verify -DskipUnitTests=false
```

### Packaging Commands
```bash
# Package JAR
mvn package

# Package with sources and javadoc
mvn package javadoc:jar source:jar

# Install locally
mvn install

# Deploy to Maven Central (requires credentials)
mvn deploy -P release
```

## Troubleshooting Quick Fixes

### Problem: "Could not find libpdf_oxide_jni.so"

**Solution**:
```bash
# Rebuild natives
./scripts/build-natives.sh --current --release

# Verify file exists
find . -name "libpdf_oxide_jni.so" -type f

# Check JAR contains natives
jar tf target/pdf-oxide-*.jar | grep -E "\.so|\.dylib|\.dll"
```

### Problem: Maven build fails with compilation errors

**Solution**:
```bash
# Clean build
mvn clean compile

# Check Java source
ls -la java/src/main/java/com/pdfoxide/

# Verify all classes exist
find java/src/main/java -name "*.java" | wc -l
```

### Problem: Tests fail

**Solution**:
```bash
# Run with debug output
mvn test -e

# Check test class exists
ls java/src/test/java/com/pdfoxide/integration/

# Run specific test with output
mvn test -Dtest=FullWorkflowTest#testCompleteWorkflow -e
```

## Progress Tracking

### Update TODO List
```bash
# After completing a task:
# 1. Update PHASE_8_STATUS.md with progress
# 2. Update todo list with completed items
# 3. Commit progress to git
```

### Key Milestones

- ✅ Phase 7 Complete (Completed this session)
- ⏳ JAR Buildable (Next: ~1 hour)
- ⏳ All Tests Pass (Next: ~2 hours)
- ⏳ Examples Working (Next: ~4 hours)
- ⏳ Performance OK (Next: ~3 hours)
- ⏳ Ready for Release (Next: ~8 hours total)

## Next Session Agenda

### First Priority (30 min)
1. Check native build status
2. Verify `libpdf_oxide_jni.so` exists
3. Organize natives with build script
4. Run `mvn clean verify`

### Second Priority (30 min)
1. Run integration tests
2. Fix any test failures
3. Create test report

### Third Priority (1 hour)
1. Create example programs
2. Test each example
3. Document examples

## Git Workflow

### Before Session End
```bash
cd /home/yfedoseev/projects/pdf_oxide
git add -A
git commit -m "Phase 8: Build automation and CI/CD infrastructure setup"
git log --oneline | head -5
```

### Before Release
```bash
git tag -a v0.3.0 -m "Java bindings for pdf_oxide v0.3.0"
git push origin v0.3.0
```

## Documentation

### Key Documentation Files
- `PHASE_8_GUIDE.md` - Comprehensive 500+ line implementation guide
- `PHASE_8_STATUS.md` - Progress tracking and status
- `SESSION_SUMMARY.md` - Work completed this session
- `java/GETTING_STARTED.md` - Developer quick start
- `CONTINUATION_GUIDE.md` - This file

### To Continue, Read In This Order
1. **SESSION_SUMMARY.md** - Understand what was done
2. **PHASE_8_STATUS.md** - Check current completion status
3. **CONTINUATION_GUIDE.md** - This file
4. **PHASE_8_GUIDE.md** - For detailed implementation steps
5. **java/GETTING_STARTED.md** - For Java API examples

## Communication & Support

### If Stuck
1. Check `PHASE_8_GUIDE.md` implementation section
2. Review `SESSION_SUMMARY.md` for error resolution patterns
3. Check `java/GETTING_STARTED.md` troubleshooting section
4. Review recent git commits for context

### Key Contact Points
- Project: `/home/yfedoseev/projects/pdf_oxide`
- Java: `/home/yfedoseev/projects/pdf_oxide/java`
- Build: `/home/yfedoseev/projects/pdf_oxide/scripts/build-natives.sh`
- Tests: `/home/yfedoseev/projects/pdf_oxide/java/src/test`

## Success Criteria Checklist

### Phase 8 Completion Checklist
- [ ] Native library builds successfully
- [ ] JAR packages with embedded natives
- [ ] All integration tests pass
- [ ] Example programs run correctly
- [ ] Performance within 10% of Rust
- [ ] No memory leaks detected
- [ ] Documentation complete
- [ ] Ready for v0.3.0 release

### Current Status
```
Phase 7: ✅ COMPLETE
Phase 8 Planning: ✅ COMPLETE
Phase 8 Setup: ✅ COMPLETE (30%)
Phase 8 Build: 🔄 IN PROGRESS
Phase 8 Testing: ⏳ PENDING
Phase 8 Release: ⏳ PENDING
```

---

**Last Updated**: January 15, 2026
**Next Session**: Check native build immediately
**Estimated Time to v0.3.0**: 1-2 days