sdk/sources/android-25/com/android/hotspot2/IMSIParameter.java

   1 package com.android.hotspot2;
   2
   3 import java.io.IOException;
   4
   5 public class IMSIParameter {
   6     private final String mImsi;
   7     private final boolean mPrefix;
   8
   9     public IMSIParameter(String imsi, boolean prefix) {
  10         mImsi = imsi;
  11         mPrefix = prefix;
  12     }
  13
  14     public IMSIParameter(String imsi) throws IOException {
  15         if (imsi == null || imsi.length() == 0) {
  16             throw new IOException("Bad IMSI: '" + imsi + "'");
  17         }
  18
  19         int nonDigit;
  20         char stopChar = '\0';
  21         for (nonDigit = 0; nonDigit < imsi.length(); nonDigit++) {
  22             stopChar = imsi.charAt(nonDigit);
  23             if (stopChar < '0' || stopChar > '9') {
  24                 break;
  25             }
  26         }
  27
  28         if (nonDigit == imsi.length()) {
  29             mImsi = imsi;
  30             mPrefix = false;
  31         } else if (nonDigit == imsi.length() - 1 && stopChar == '*') {
  32             mImsi = imsi.substring(0, nonDigit);
  33             mPrefix = true;
  34         } else {
  35             throw new IOException("Bad IMSI: '" + imsi + "'");
  36         }
  37     }
  38
  39     public boolean matches(String fullIMSI) {
  40         if (mPrefix) {
  41             return mImsi.regionMatches(false, 0, fullIMSI, 0, mImsi.length());
  42         } else {
  43             return mImsi.equals(fullIMSI);
  44         }
  45     }
  46
  47     public boolean matchesMccMnc(String mccMnc) {
  48         if (mPrefix) {
  49             // For a prefix match, the entire prefix must match the mcc+mnc
  50             return mImsi.regionMatches(false, 0, mccMnc, 0, mImsi.length());
  51         } else {
  52             // For regular match, the entire length of mcc+mnc must match this IMSI
  53             return mImsi.regionMatches(false, 0, mccMnc, 0, mccMnc.length());
  54         }
  55     }
  56
  57     public boolean isPrefix() {
  58         return mPrefix;
  59     }
  60
  61     public String getImsi() {
  62         return mImsi;
  63     }
  64
  65     public int prefixLength() {
  66         return mImsi.length();
  67     }
  68
  69     @Override
  70     public boolean equals(Object thatObject) {
  71         if (this == thatObject) {
  72             return true;
  73         } else if (thatObject == null || getClass() != thatObject.getClass()) {
  74             return false;
  75         }
  76
  77         IMSIParameter that = (IMSIParameter) thatObject;
  78         return mPrefix == that.mPrefix && mImsi.equals(that.mImsi);
  79     }
  80
  81     @Override
  82     public int hashCode() {
  83         int result = mImsi != null ? mImsi.hashCode() : 0;
  84         result = 31 * result + (mPrefix ? 1 : 0);
  85         return result;
  86     }
  87
  88     @Override
  89     public String toString() {
  90         if (mPrefix) {
  91             return mImsi + '*';
  92         } else {
  93             return mImsi;
  94         }
  95     }
  96 }