1 files changed, 72 insertions, 0 deletions
diff --git a/json/bundles/org.eclipse.wst.json.schemaprocessor/src/org/eclipse/wst/json/schemaprocessor/internal/JSONSchemaProcessor.java b/json/bundles/org.eclipse.wst.json.schemaprocessor/src/org/eclipse/wst/json/schemaprocessor/internal/JSONSchemaProcessor.java
new file mode 100644
index 0000000000..b55ea39b0b
--- /dev/null
+++ b/json/bundles/org.eclipse.wst.json.schemaprocessor/src/org/eclipse/wst/json/schemaprocessor/internal/JSONSchemaProcessor.java
@@ -0,0 +1,72 @@
+/**
+ *  Copyright (c) 2013-2014 Angelo ZERR.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
+ */
+package org.eclipse.wst.json.schemaprocessor.internal;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import org.eclipse.json.impl.schema.JSONSchemaDocument;
+import org.eclipse.json.schema.IJSONSchemaDocument;
+import org.eclipse.json.schema.IJSONSchemaProcessor;
+import org.eclipse.wst.json.core.internal.download.HttpClientProvider;
+
+public class JSONSchemaProcessor implements IJSONSchemaProcessor {
+
+	private static final int MAP_SIZE = 10;
+	private static Map<String,IJSONSchemaDocument> schemaDocuments = new LinkedHashMap<String, IJSONSchemaDocument>();
+	
+	@Override
+	public IJSONSchemaDocument getSchema(String uriString) throws IOException {
+		IJSONSchemaDocument schemaDocument = schemaDocuments.get(uriString);
+		if (schemaDocument != null) {
+			return schemaDocument;
+		}
+		int size = schemaDocuments.size();
+		if (size > MAP_SIZE) {
+			String key = schemaDocuments.keySet().iterator().next();
+			schemaDocuments.remove(key);
+		}
+		URL url = new URL(uriString);
+		InputStream is = null;
+		try {
+			if ("jar".equals(url.getProtocol())) {
+				is = url.openStream();
+			} else {
+				File f = HttpClientProvider.getFile(url);
+				if (f != null) {
+					is = new FileInputStream(f);
+				}
+			}
+			if (is != null) {
+				schemaDocument = new JSONSchemaDocument(new InputStreamReader(is));
+			}
+		} finally {
+			if (is != null) {
+				is.close();
+			}
+		}
+		if (schemaDocument != null) {
+			schemaDocuments.put(uriString, schemaDocument);
+		}
+		return schemaDocument;
+	}
+	
+	public static void clearCache() {
+		schemaDocuments.clear();
+	}
+
+}