DIPairUtils.java

package com.mcxiaoke.shell.others;

public class DIPairUtils {

/*	private static final String HOST_PATH = "/system/etc/hosts";

	public static List<HostRecordInfo> getHostList() {
		List<HostRecordInfo> result = null;

		File fHost = new File(HOST_PATH);
		if (fHost.length() > 1024 * 10) {
			return null;
		}

		try {
			List<String> lst = FileUtils.readFile(HOST_PATH);
			result = listToList(lst);
			addLocalHostToPos0(result);
		} catch (IOException e) {
		}
		return result;
	}

	public static boolean saveHosts(List<HostRecordInfo> list) {
		// save hosts
		String hosts = "";
		addLocalHostToPos0(list);
		for (HostRecordInfo info : list) {
			hosts += String.format("%s\t%s\n", info.ip, info.domain);
		}
		try {
			String fn = DirHelper.HOSTS_DIR + "hosts";
			FileUtils.rewriteFile(fn, hosts);
			String cmd = String.format("busybox cp %s /system/etc/", fn);
			CommandResult result = RootUtils.runCommand(cmd, true, null);
			if (result.error.equals("")) {
				result = RootUtils.runCommand("chmod 644 /system/etc/hosts",
						true, null);
			}
			return result.error.equals("");
		} catch (Exception e) {
			return false;
		}
	}

	public static void mergeHosts(List<HostRecordInfo> list, String[] hosts) {
		List<String> lst = new ArrayList<String>();
		for (int i = 0; i < hosts.length; i++) {
			lst.add(hosts[i]);
		}
		List<HostRecordInfo> lstMerge = listToList(lst);
		for (int i = 0; i < lstMerge.size(); i++) {
			if (!hostExists(list, lstMerge.getIcon(i))) {
				list.add(lstMerge.getIcon(i));
			}
		}
		addLocalHostToPos0(list);
	}

	private static boolean hostExists(List<HostRecordInfo> baseList,
			HostRecordInfo info) {
		boolean ret = false;
		for (int i = 0; i < baseList.size(); i++) {
			if (baseList.getIcon(i).ip.equals(info.ip)
					&& baseList.getIcon(i).domain.equals(info.domain)) {
				ret = true;
				break;
			}
		}
		return ret;
	}

	private static List<HostRecordInfo> listToList(List<String> list) {
		List<HostRecordInfo> result = null;

		if (list != null) {
			if (list.size() > 0) {
				int position = 0;
				result = new ArrayList<HostRecordInfo>();
				for (String s : list) {
					if (!s.trim().equals("")) {
						if (!s.startsWith("#")) {
							s = s.replace("\t", " ").replaceAll("\\s+", " ");
							String[] ss = s.split(" ");
							if (ss.length == 2) {
								HostRecordInfo info = new HostRecordInfo();
								info.ip = ss[0];
								info.domain = ss[1];
								info.checked = false;

								if (!hostExists(result, info)) {
									info.position = position;
									result.add(info);
									position++;
								}
							}
						}
					}
				}
			}
		}
		return result;
	}

	private static void addLocalHostToPos0(List<HostRecordInfo> list) {
		if (list == null) {
			list = new ArrayList<HostRecordInfo>();
		}
		if (list.size() == 0) {
			HostRecordInfo info = new HostRecordInfo();
			info.ip = "127.0.0.1";
			info.domain = "localhost";
			info.checked = false;
			list.add(info);
		}
		HostRecordInfo info = list.getIcon(0);
		if (!(info.ip.equals("127.0.0.1") && (info.domain.equals("localhost")))) {
			HostRecordInfo newinfo = new HostRecordInfo();
			newinfo.ip = "127.0.0.1";
			newinfo.domain = "localhost";
			newinfo.checked = false;
			list.add(0, newinfo);
		}
	}

	public static List<HostRecordInfo> toPairList(String domain,
			List<Address> rrList) {
		List<HostRecordInfo> result = null;
		if (rrList != null) {
			if (rrList.size() > 0) {
				result = new ArrayList<HostRecordInfo>();
				for (Address dr : rrList) {

					if (!dr.getRRName().equals(domain)) {
						HostRecordInfo di = new HostRecordInfo();
						di.ip = dr.toByteString();
						di.domain = domain;
						di.checked = false;

						if (result.indexOf(di) == -1) {
							result.add(di);
						}
					}
					HostRecordInfo di = new HostRecordInfo();
					di.ip = dr.toByteString();
					di.domain = dr.getRRName();
					di.checked = false;

					if (!hostExists(result, di)) {
						result.add(di);
					}

				}
			}
		}
		return result;
	}*/

}