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package org.glassfish.admin.rest.resources.custom;
import com.sun.enterprise.server.logging.logviewer.backend.LogFilter;
import org.glassfish.internal.api.LogManager;
import javax.ws.rs.GET;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import java.io.IOException;
import java.util.Vector;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import org.jvnet.hk2.component.Habitat;
/**
* REST resource to get Log Names
* simple wrapper around internal LogFilter class
*
* @author ludovic Champenois
*/
public class LogNamesResource {
@Context
protected Habitat habitat;
@GET
@Produces({MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON})
public String getLogNamesJSON(@QueryParam("instanceName") String instanceName) throws IOException {
return getLogNames(instanceName, "json");
}
@GET
@Produces({ MediaType.APPLICATION_XML})
public String getLogNamesJXML(@QueryParam("instanceName") String instanceName) throws IOException {
return getLogNames(instanceName, "xml");
}
private String getLogNames(String instanceName, String type) throws IOException {
if (habitat.getComponent(LogManager.class) == null) {
//the logger service is not install, so we cannot rely on it.
//return an error
throw new IOException("The GlassFish LogManager Service is not available. Not installed?");
}
LogFilter logFilter = habitat.getComponent(LogFilter.class);
return convertQueryResult(logFilter.getInstanceLogFileNames(instanceName),type);
}
private String quoted(String s) {
return "\"" + s + "\"";
}
private String convertQueryResult(Vector v, String type) {
StringBuilder sb = new StringBuilder();
String sep = "";
if (type.equals("json")) {
sb.append("{\"InstanceLogFileNames\": [");
} else {
sb.append("<InstanceLogFileNames>\n");
}
// extract every record
for (int i = 0; i < v.size(); ++i) {
String name = (String) v.get(i);
if (type.equals("json")) {
sb.append(sep);
sb.append(quoted(name));
sep = ",";
} else {
sb.append("<" + name + "/>");
}
}
if (type.equals("json")) {
sb.append("]}\n");
} else {
sb.append("\n</InstanceLogFileNames>\n");
}
return sb.toString();
}
}