[15093] | 1 | /*
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| 2 | * Search4j utility
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| 3 | * Command Line utility to search a system for java, launch a jar, or compare java versions
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| 4 | * base on launch4j
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| 5 | */
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| 6 |
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[15690] | 7 | #include "libsearch4j.h"
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[15093] | 8 |
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[15690] | 9 | void usage();
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[15093] | 10 |
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| 11 | enum Action {
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| 12 | Find,
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| 13 | Launch,
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| 14 | Compare
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| 15 | };
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| 16 |
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[15690] | 17 | enum JvmProperty {
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| 18 | JavaHome,
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| 19 | Version,
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| 20 | Executable
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[15093] | 21 | };
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| 22 |
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| 23 | string actionToString( Action a ) {
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| 24 | if ( a == Find )
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| 25 | return "Find";
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| 26 | else if ( a == Launch )
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| 27 | return "Launch";
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| 28 | else if ( a == Compare )
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| 29 | return "Compare";
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| 30 | return "Unknown";
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| 31 | }
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| 32 |
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| 33 | string jvmPropertyToString( JvmProperty jp ) {
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| 34 | if ( jp == JavaHome )
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| 35 | return "JavaHome";
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| 36 | else if ( jp == Version )
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| 37 | return "Version";
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| 38 | else if ( jp == Executable )
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| 39 | return "Executable";
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| 40 | return "Unknown";
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| 41 | }
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| 42 |
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| 43 |
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| 44 | int main ( int argc, char** argv ) {
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| 45 |
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[15690] | 46 | bool verbose = false;
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[17302] | 47 | string phint = "";
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[15690] | 48 | string hint = "";
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| 49 | bool use_minimum = false;
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| 50 | bool useJavaw = false;
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| 51 | Jvm minimum;
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[15093] | 52 | JvmProperty jvmProperty = JavaHome;
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| 53 | Action action = Find;
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| 54 | string arg1 = "";
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| 55 |
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| 56 | //parse commandline arguments
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| 57 | for (int i=1; i<argc; i++) {
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[15103] | 58 | if ( strcmp(argv[i], "--verbose") == 0 ) {
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[15093] | 59 | verbose = true;
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[15103] | 60 | } else if ( strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "--usage") == 0 ) {
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[15093] | 61 | usage();
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| 62 | return 0;
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[15103] | 63 | } else if ( strcmp(argv[i], "-v") == 0 ) {
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[15093] | 64 | jvmProperty = Version;
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[15103] | 65 | } else if ( strcmp(argv[i], "-e") == 0 ) {
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[15093] | 66 | jvmProperty = Executable;
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[15103] | 67 | } else if ( strcmp(argv[i], "-c") == 0 ) {
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[15093] | 68 | action = Compare;
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| 69 | if ( i == argc-1 ) {
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| 70 | usage();
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[15133] | 71 | return -1;
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[15093] | 72 | } else {
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| 73 | arg1 = argv[++i];
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| 74 | }
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| 75 |
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[15133] | 76 | } else if ( strcmp(argv[i], "-m") == 0 ) {
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[15093] | 77 | if ( i == argc-1 ) {
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| 78 | usage();
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[15133] | 79 | return -1;
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[15093] | 80 | } else {
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| 81 | if ( !minimum.setVersionFromString( argv[++i] ) ) {
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| 82 | usage();
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| 83 | return 0;
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| 84 | }
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| 85 | use_minimum = true;
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| 86 | }
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| 87 |
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[15103] | 88 | } else if ( strcmp(argv[i], "-l") == 0 ) {
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[15133] | 89 | if ( i == argc-1 ) {
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| 90 | usage();
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| 91 | return -1;
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| 92 | } else {
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| 93 | action = Launch;
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[15690] | 94 | arg1 = argv[++i];
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[15133] | 95 | }
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[15690] | 96 |
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[17302] | 97 | } else if ( strcmp(argv[i], "-p") == 0 ) {
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| 98 | if ( i == argc-1 ) {
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| 99 | usage();
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| 100 | return -1;
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| 101 | } else {
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| 102 | phint = argv[++i];
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| 103 | }
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| 104 |
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[15690] | 105 | } else if ( strcmp(argv[i], "-h") == 0 ) {
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[15133] | 106 | if ( i == argc-1 ) {
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| 107 | usage();
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| 108 | return -1;
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| 109 | } else {
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[15690] | 110 | hint = argv[++i];
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| 111 | }
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| 112 |
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| 113 | #ifdef WINDOWS
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| 114 | } else if ( strcmp(argv[i], "-w") == 0 ) {
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| 115 | useJavaw = true;
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| 116 | #endif
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[15093] | 117 |
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| 118 | } else {
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| 119 | cout << "unknown option: " << argv[i] << endl;
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| 120 | return -1;
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| 121 | }
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| 122 | }
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| 123 |
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| 124 | //summarise commandline arguments
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| 125 | if ( verbose ) {
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| 126 | cout << "Action: " << actionToString( action ) << endl;
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| 127 | }
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| 128 |
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| 129 | //find java
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| 130 | Jvm foundJvm;
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[17302] | 131 | bool found = find( foundJvm, use_minimum, minimum, phint, hint, verbose );
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[15093] | 132 |
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| 133 | //check if it was found
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| 134 | if ( found ) {
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| 135 | if ( verbose ) cout << "Found JVM at '" << foundJvm.getJavaHome() << "'" << endl;
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| 136 | } else {
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| 137 | //not found - exit with -1
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| 138 | if ( verbose ) cout << "JVM not found" << endl;
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| 139 | return -1;
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| 140 | }
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| 141 |
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| 142 |
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| 143 | //Find Action
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| 144 | //---------------
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| 145 | if ( action == Find ) {
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| 146 |
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| 147 | if ( verbose ) cout << "Property to print: " << jvmPropertyToString( jvmProperty ) << endl;
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| 148 |
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| 149 | //found - print out info about it
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| 150 | if ( jvmProperty == JavaHome ) {
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| 151 | cout << foundJvm.getJavaHome() << endl;
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| 152 | } else if ( jvmProperty == Version ) {
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| 153 | cout << foundJvm.getVersion() << endl;
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| 154 | } else if ( jvmProperty == Executable ) {
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[15892] | 155 | #ifdef WINDOWS
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[15690] | 156 | if ( useJavaw ) {
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| 157 | cout << foundJvm.getWinExecutable() << endl;
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| 158 | } else {
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| 159 | cout << foundJvm.getExecutable() << endl;
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[15892] | 160 | }
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| 161 | #else
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| 162 | cout << foundJvm.getExecutable() << endl;
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| 163 | #endif
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[15093] | 164 | } else {
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| 165 | return -1; //should never happen
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| 166 | }
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| 167 |
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| 168 |
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| 169 | //Compare Action
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| 170 | //---------------
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| 171 | } else if ( action == Compare ) {
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| 172 |
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| 173 | if ( verbose ) cout << "Compare to java at: " << arg1 << endl;
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| 174 |
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| 175 | //load a dummy jvm for comparison
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| 176 | Jvm givenJvm;
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| 177 | if ( !givenJvm.setVersionFromString(arg1) ) {
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| 178 | if ( verbose ) cout << "Could not parse that version string" << endl;
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| 179 | return -1;
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| 180 | }
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| 181 |
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| 182 | //compare
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| 183 | cout << foundJvm.compare( givenJvm );
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| 184 | return 0;
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| 185 |
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| 186 |
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| 187 | //Launch Action
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| 188 | //---------------
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| 189 | } else if ( action == Launch ) {
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| 190 |
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| 191 | if ( verbose ) cout << "Jar to launch: " << arg1 << endl;
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| 192 |
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| 193 | string cmd = "\"", output = "";
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[15892] | 194 | #ifdef WINDOWS
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[15690] | 195 | if ( useJavaw ) {
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| 196 | cmd.append( foundJvm.getWinExecutable() );
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| 197 | } else {
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| 198 | cmd.append( foundJvm.getExecutable() );
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[15892] | 199 | }
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| 200 | #else
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| 201 | cmd.append( foundJvm.getExecutable() );
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| 202 | #endif
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[15093] | 203 | cmd.append( "\" -jar " );
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| 204 | cmd.append( arg1 );
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| 205 |
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[15690] | 206 | process( cmd, true );
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[15093] | 207 |
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| 208 | }
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| 209 |
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| 210 | return 0;
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[15690] | 211 | }
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| 212 |
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| 213 | void usage() {
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| 214 |
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| 215 | cout
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| 216 | << "-----------------" << endl
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| 217 | << " search4j: usage" << endl
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| 218 | << "-----------------" << endl
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| 219 | << "Three usage methods: find, compare and launch" << endl
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| 220 | << endl
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| 221 | << "find: find java and print out information about it" << endl
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| 222 | << endl
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| 223 | << " search4j [-v|-e]" << endl
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| 224 | << " eg: search4j -e" << endl
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| 225 | << endl
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| 226 | << " by default, print JAVA_HOME. E.g., C:\\Program Files\\jre1.5.0_15, or" << endl
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| 227 | << " if -v is specified, print the java version string. E.g. 1.5.0_15, or" << endl
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| 228 | << " if -e is specified, print the path the to the java executable. E.g. C:\\Program Files\\jre1.5.0_15\\bin\\java.exe" << endl
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| 229 | << endl
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| 230 | << "compare: compare the found java with the given java version string" << endl
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| 231 | << endl
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| 232 | << " search4j -c VERSION_STRING" << endl
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| 233 | << " eg: search4j -c VERSION_STRING" << endl
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| 234 | << endl
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| 235 | << " print -1 if found java is older" << endl
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| 236 | << " print 0 if found java is same" << endl
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| 237 | << " print 1 if found java is newer" << endl
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| 238 | << endl
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| 239 | << "launch: launch the given executable jar with the found java" << endl
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| 240 | << endl
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| 241 | << " search4j -l EXECUTABLE_JAR [-m VERSION_STRING]" << endl
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| 242 | << " eg: search4j -l greenstone3.jar" << endl
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| 243 | << endl
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| 244 | << " specify the location of the jar relative to the current directory" << endl
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| 245 | << endl
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| 246 | << "Global Options:" << endl
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| 247 | << " -m VERSION_STRING: (minimum) find a java of the given version or newer, or fail" << endl
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[17302] | 248 | << " -p LOCATION: (priority hint) first look for java in LOCATION (treated as a JAVA_HOME)" << endl
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[15690] | 249 | << " -h LOCATION: (hint) as a last resort look for java in LOCATION (treated as a JAVA_HOME)" << endl
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| 250 | << " -w: (windows) find and/or use the javaw.exe executable instead of java.exe (in windows only)" << endl
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| 251 | << " --verbose : have search4j print out information about what its doing" << endl
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| 252 | << " --help : display this usage screen" << endl
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| 253 | << endl
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| 254 | ;
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| 255 | }
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