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Dynamic scripting for the JVM
package org.snapscript.common.store;
import static org.snapscript.common.store.RemoteStatus.ERROR;
import static org.snapscript.common.store.RemoteStatus.NOT_FOUND;
import static org.snapscript.common.store.RemoteStatus.SUCCESS;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
public class RemoteClient {
private static final String WRITE_METHOD = "PUT";
private static final int SUCCESS_CODE = 200;
private static final int NOT_FOUND_CODE = 404;
private final RemoteLocation location;
private final URI root;
public RemoteClient(URI root) {
this.location = new RemoteLocation(root);
this.root = root;
}
public RemoteResponse get(String path) {
try {
URL address = location.createRelative(path);
URLConnection connection = address.openConnection();
HttpURLConnection request = (HttpURLConnection)connection;
int code = request.getResponseCode();
if(code == SUCCESS_CODE) {
return new RemoteResponse(request, SUCCESS, path);
}
if(code == NOT_FOUND_CODE) {
return new RemoteResponse(request, NOT_FOUND, path);
}
return new RemoteResponse(request, ERROR, path);
} catch(Exception e) {
throw new StoreException("Could not load resource '" + path + "' from '" + root + "'", e);
}
}
public RemoteResponse put(String path) {
try {
URL address = location.createRelative(path);
URLConnection connection = address.openConnection();
HttpURLConnection request = (HttpURLConnection)connection;
request.setDoOutput(true);
request.setRequestMethod(WRITE_METHOD);
request.connect(); // check if the server is up
return new RemoteResponse(request, SUCCESS, path);
} catch(Exception e) {
throw new StoreException("Could not write resource '" + path + "' to '" + root + "'", e);
}
}
}