template checker

source/src/org/playframework/playclipse/builder/TemplateChecker.java

@@ -0,0 +1,88 @@
+package org.playframework.playclipse.builder;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+
+import fr.zenexity.pdt.editors.IO;
+
+public class TemplateChecker extends ErrorChecker {
+
+	public TemplateChecker(IFile file) {
+		super(file);
+	}
+
+
+	private static Pattern action = Pattern.compile("@\\{([^}]+)\\}");
+	private static Pattern action_in_tag = Pattern.compile("#\\{.+(@.+[)])");
+
+	public static boolean isTemplate(IPath path) {
+		for (String segment: path.segments()) {
+			if (segment.equals("views")) return true;
+		}
+		return false;
+	}
+
+	@Override
+	public void check() {
+		System.out.println("CHECK: " + file.getName());
+		String content = "";
+		try {
+			content = IO.readContentAsString(file);
+		} catch (Exception e) {
+			return;
+		}
+		Matcher matcher = action.matcher(content);
+		while (matcher.find()) {
+			String action = matcher.group(1);
+			int offset = matcher.start() + 2;
+			checkAction(action, lineNumberOf(content, offset), offset);
+		}
+		matcher = action_in_tag.matcher(content);
+		while (matcher.find()) {
+			String action = matcher.group(1).substring(1);
+			int offset = content.indexOf("@", matcher.start()) + 1;
+			checkAction(action, lineNumberOf(content, offset), offset);
+		}
+	}
+
+	private void checkAction(String action, int lineNo, int offset) {
+		if (action.indexOf('/') > -1) {
+			checkStaticAction(action, lineNo, offset);
+			return;
+		}
+		if (action.indexOf('(') > -1) {
+			action = action.substring(0, action.indexOf('('));
+		}
+		if (action.indexOf('.') == -1) {
+			// TODO: Check relative actions, e.g. @index instead of @Application.index
+			return;
+		}
+		if (getInspector().resolveAction(action) == null) {
+			try {
+				addMarker("Missing route: " + action, lineNo, IMarker.SEVERITY_ERROR, offset, offset + action.length());
+			} catch (CoreException e) {
+				// Never happens
+			}
+		}
+	}
+
+	private void checkStaticAction(String action, int lineNo, int offset) {
+		// TODO
+	}
+
+	private static int lineNumberOf(String content, int offset) {
+		int lineNo = 1;
+		String region = content.substring(0, offset);
+		while (region.indexOf("\n") > -1) {
+			lineNo++;
+			region = region.substring(region.indexOf("\n") + 1);
+		}
+		return lineNo;
+	}
+
+}