Add header option to SjppAntTask

sjpp/src/main/java/sjpp/Context.java

@@ -1,8 +1,10 @@
 package sjpp;
 
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
@@ -15,6 +17,8 @@ public class Context {
 
 	public static final String GENERATED = "// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.";
 	private Define define;
+	private Header header;
+
 	private final ContextMode mode;
 	private final List<JavaFile> files = new ArrayList<JavaFile>();
 
@@ -33,6 +37,14 @@ public void addDefine(String id) {
 		this.define = new Define(id);
 	}
 
+	public void addHeader(List<String> headerLines) throws IOException {
+		this.header = new Header(headerLines);
+	}
+
+	public Header getHeader() {
+		return header;
+	}
+
 	public boolean doesApplyOn(String s) {
 		return define.doesApplyOn(s);
 	}

sjpp/src/main/java/sjpp/Header.java

@@ -0,0 +1,21 @@
+package sjpp;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+public class Header {
+
+    private List<String> headerLines;
+
+    public Header(List<String> headerLines) throws IOException {
+        this.headerLines = headerLines;
+    }
+
+    public List<String> getLines() {
+        return headerLines;
+    }
+}

sjpp/src/main/java/sjpp/JavaFile.java

@@ -4,6 +4,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.ListIterator;
 
@@ -61,6 +62,10 @@ public void process() {
 		if (context.getMode() == ContextMode.REGULAR)
 			removeFirstHeader();
 
+		if (context.getHeader() != null) {
+			lines.addAll(0, context.getHeader().getLines());
+		}
+
 		ProcessMode mode = ProcessMode.NORMAL;
 
 		for (ListIterator<String> it = lines.listIterator(); it.hasNext();) {

sjpp/src/main/java/sjpp/SjppAntTask.java

@@ -1,29 +1,44 @@
 package sjpp;
 
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Task;
 
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
 public class SjppAntTask extends Task {
 
 	private String src;
 	private String dest;
 	private String define;
+	private String header;
 
 	@Override
 	public void execute() throws BuildException {
 		this.log("Starting SimpleJava PreProcessor.");
 		this.log("src: " + src);
 		this.log("dest: " + dest);
 		this.log("define: " + define);
+		this.log("header: " + header);
 
 		final Path root = Paths.get(src);
 
 		final Context context = new Context(ContextMode.REGULAR, root);
 		context.addDefine(define);
 
+
+		if (header != null) {
+			try {
+				context.addHeader(Files.readAllLines(Paths.get(header)));
+			} catch (IOException e) {
+				e.printStackTrace();
+				this.log("Error " + e.toString());
+			}
+		}
+
+
 		final Path out = Paths.get(dest);
 		try {
 			context.process(out);
@@ -46,4 +61,8 @@ public final void setDefine(String define) {
 		this.define = define;
 	}
 
+	public final void setHeader(String header) {
+		this.header = header;
+	}
+
 }