Merge "Simplify NfcCommand and avoid NullPointerExceptions" (7ba92704) · Commits · e / os / android_frameworks_base

cmds/svc/src/com/android/commands/svc/NfcCommand.java

+18 −35

Original line number	Diff line number	Diff line
		@@ -17,8 +17,6 @@
		package com.android.commands.svc;

		import android.content.Context;
		import android.content.pm.IPackageManager;
		import android.content.pm.PackageManager;
		import android.nfc.INfcAdapter;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		@@ -44,42 +42,27 @@ public class NfcCommand extends Svc.Command {

		@Override
		public void run(String[] args) {
		boolean validCommand = false;
		if (args.length >= 2) {
		boolean flag = false;
		if ("enable".equals(args[1])) {
		flag = true;
		validCommand = true;
		} else if ("disable".equals(args[1])) {
		flag = false;
		validCommand = true;
		INfcAdapter adapter = INfcAdapter.Stub.asInterface(
		ServiceManager.getService(Context.NFC_SERVICE));

		if (adapter == null) {
		System.err.println("Got a null NfcAdapter, is the system running?");
		return;
		}
		if (validCommand) {
		IPackageManager pm = IPackageManager.Stub.asInterface(
		ServiceManager.getService("package"));
		try {
		if (pm.hasSystemFeature(PackageManager.FEATURE_NFC, 0) \|\|
		pm.hasSystemFeature(PackageManager.FEATURE_NFC_HOST_CARD_EMULATION, 0)) {
		INfcAdapter nfc = INfcAdapter.Stub
		.asInterface(ServiceManager.getService(Context.NFC_SERVICE));

		try {
		if (flag) {
		nfc.enable();
		} else
		nfc.disable(true);
		} catch (RemoteException e) {
		System.err.println("NFC operation failed: " + e);
		}
		} else {
		System.err.println("NFC feature not supported.");
		if (args.length == 2 && "enable".equals(args[1])) {
		adapter.enable();
		return;
		} else if (args.length == 2 && "disable".equals(args[1])) {
		adapter.disable(true);
		return;
		}
		} catch (RemoteException e) {
		System.err.println("RemoteException while calling PackageManager, is the "
		+ "system running?");
		}
		System.err.println("NFC operation failed: " + e);
		return;
		}
		}

		System.err.println(longHelp());
		}