Added dot, GraphML and TEI message body writers.

collatex-servlet/src/main/java/eu/interedition/collatex/http/CollateApplication.java

@@ -1,9 +1,6 @@
 package eu.interedition.collatex.http;
 
-import eu.interedition.collatex.io.IOExceptionMapper;
-import eu.interedition.collatex.io.SimpleCollationJSONMessageBodyReader;
-import eu.interedition.collatex.io.VariantGraphJSONMessageBodyWriter;
-import eu.interedition.collatex.io.VariantGraphSVGMessageBodyWriter;
+import eu.interedition.collatex.io.*;
 
 import javax.ws.rs.core.Application;
 import java.io.BufferedReader;
@@ -25,7 +22,6 @@ public class CollateApplication extends Application {
     private static String detectDotPath() {
         for (String detectionCommand : new String[] { "which dot", "where dot.exe" }) {
             try {
-
                 final Process process = Runtime.getRuntime().exec(detectionCommand);
                 try (BufferedReader processReader = new BufferedReader(new InputStreamReader(process.getInputStream(), Charset.defaultCharset()))) {
                     final CompletableFuture<Optional<String>> path = CompletableFuture.supplyAsync(() -> processReader.lines()
@@ -49,6 +45,9 @@ public Set<Class<?>> getClasses() {
         Set<Class<?>> s = new HashSet<>();
         s.add(SimpleCollationJSONMessageBodyReader.class);
         s.add(VariantGraphJSONMessageBodyWriter.class);
+        s.add(VariantGraphTEIMessageBodyWriter.class);
+        s.add(VariantGraphGraphMLMessageBodyWriter.class);
+        s.add(VariantGraphDotMessageBodyWriter.class);
         s.add(IOExceptionMapper.class);
         return s;
     }

collatex-servlet/src/main/java/eu/interedition/collatex/io/VariantGraphDotMessageBodyWriter.java

@@ -0,0 +1,44 @@
+package eu.interedition.collatex.io;
+
+import eu.interedition.collatex.VariantGraph;
+import eu.interedition.collatex.simple.SimpleVariantGraphSerializer;
+
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.HttpHeaders;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+/**
+ * Created by ronald on 5/6/15.
+ */
+@Provider
+@Produces("text/plain")
+public class VariantGraphDotMessageBodyWriter implements MessageBodyWriter<VariantGraph> {
+    @Override
+    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return VariantGraph.class.isAssignableFrom(type);
+    }
+
+    @Override
+    public long getSize(VariantGraph variantGraph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return 0;
+    }
+
+    @Override
+    public void writeTo(VariantGraph graph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
+        httpHeaders.add(HttpHeaders.CONTENT_TYPE, "text/plain");
+        httpHeaders.add(HttpHeaders.CONTENT_ENCODING, "utf-8");
+        try (final Writer out = new OutputStreamWriter(entityStream)) {
+            new SimpleVariantGraphSerializer(graph).toDot(out);
+        }
+    }
+}

collatex-servlet/src/main/java/eu/interedition/collatex/io/VariantGraphGraphMLMessageBodyWriter.java

@@ -0,0 +1,57 @@
+package eu.interedition.collatex.io;
+
+import eu.interedition.collatex.VariantGraph;
+import eu.interedition.collatex.simple.SimpleVariantGraphSerializer;
+
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.HttpHeaders;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+/**
+ * Created by ronald on 5/6/15.
+ */
+@Provider
+@Produces("application/graphml+xml")
+public class VariantGraphGraphMLMessageBodyWriter implements MessageBodyWriter<VariantGraph> {
+    @Override
+    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return VariantGraph.class.isAssignableFrom(type);
+    }
+
+    @Override
+    public long getSize(VariantGraph variantGraph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return 0;
+    }
+
+    @Override
+    public void writeTo(VariantGraph graph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
+        XMLStreamWriter xml = null;
+        try {
+            httpHeaders.add(HttpHeaders.CONTENT_TYPE, "application/graphml+xml");
+            try (OutputStream responseStream = entityStream) {
+                xml = XMLOutputFactory.newInstance().createXMLStreamWriter(responseStream);
+                xml.writeStartDocument();
+                new SimpleVariantGraphSerializer(graph).toGraphML(xml);
+                xml.writeEndDocument();
+            } finally {
+                if (xml != null) {
+                    xml.close();
+                }
+            }
+        } catch (XMLStreamException e) {
+            throw new WebApplicationException(e);
+        }
+
+    }
+}

collatex-servlet/src/main/java/eu/interedition/collatex/io/VariantGraphTEIMessageBodyWriter.java

@@ -0,0 +1,56 @@
+package eu.interedition.collatex.io;
+
+import eu.interedition.collatex.VariantGraph;
+import eu.interedition.collatex.simple.SimpleVariantGraphSerializer;
+
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.HttpHeaders;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+/**
+ * Created by ronald on 5/6/15.
+ */
+@Provider
+@Produces("application/tei+xml")
+public class VariantGraphTEIMessageBodyWriter implements MessageBodyWriter<VariantGraph> {
+    @Override
+    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return VariantGraph.class.isAssignableFrom(type);
+    }
+
+    @Override
+    public long getSize(VariantGraph variantGraph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+        return 0;
+    }
+
+    @Override
+    public void writeTo(VariantGraph graph, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
+        XMLStreamWriter xml = null;
+        try {
+            httpHeaders.add(HttpHeaders.CONTENT_TYPE, "application/tei+xml");
+            try (OutputStream responseStream = entityStream) {
+                xml = XMLOutputFactory.newInstance().createXMLStreamWriter(responseStream);
+                xml.writeStartDocument();
+                new SimpleVariantGraphSerializer(graph).toTEI(xml);
+                xml.writeEndDocument();
+            } finally {
+                if (xml != null) {
+                    xml.close();
+                }
+            }
+        } catch (XMLStreamException e) {
+            throw new WebApplicationException(e);
+        }
+    }
+}