126 lines
3.5 KiB
Java
126 lines
3.5 KiB
Java
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import com.google.protobuf.conformance.Conformance;
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import com.google.protobuf.InvalidProtocolBufferException;
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class ConformanceJavaLite {
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private int testCount = 0;
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private boolean readFromStdin(byte[] buf, int len) throws Exception {
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int ofs = 0;
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while (len > 0) {
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int read = System.in.read(buf, ofs, len);
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if (read == -1) {
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return false; // EOF
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}
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ofs += read;
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len -= read;
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}
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return true;
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}
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private void writeToStdout(byte[] buf) throws Exception {
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System.out.write(buf);
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}
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// Returns -1 on EOF (the actual values will always be positive).
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private int readLittleEndianIntFromStdin() throws Exception {
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byte[] buf = new byte[4];
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if (!readFromStdin(buf, 4)) {
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return -1;
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}
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return (buf[0] & 0xff)
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| ((buf[1] & 0xff) << 8)
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| ((buf[2] & 0xff) << 16)
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| ((buf[3] & 0xff) << 24);
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}
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private void writeLittleEndianIntToStdout(int val) throws Exception {
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byte[] buf = new byte[4];
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buf[0] = (byte)val;
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buf[1] = (byte)(val >> 8);
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buf[2] = (byte)(val >> 16);
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buf[3] = (byte)(val >> 24);
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writeToStdout(buf);
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}
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private Conformance.ConformanceResponse doTest(Conformance.ConformanceRequest request) {
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Conformance.TestAllTypes testMessage;
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switch (request.getPayloadCase()) {
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case PROTOBUF_PAYLOAD: {
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try {
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testMessage = Conformance.TestAllTypes.parseFrom(request.getProtobufPayload());
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} catch (InvalidProtocolBufferException e) {
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return Conformance.ConformanceResponse.newBuilder().setParseError(e.getMessage()).build();
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}
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break;
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}
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case JSON_PAYLOAD: {
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return Conformance.ConformanceResponse.newBuilder().setSkipped(
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"Lite runtime does not suport Json Formant.").build();
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}
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case PAYLOAD_NOT_SET: {
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throw new RuntimeException("Request didn't have payload.");
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}
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default: {
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throw new RuntimeException("Unexpected payload case.");
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}
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}
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switch (request.getRequestedOutputFormat()) {
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case UNSPECIFIED:
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throw new RuntimeException("Unspecified output format.");
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case PROTOBUF:
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return Conformance.ConformanceResponse.newBuilder().setProtobufPayload(testMessage.toByteString()).build();
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case JSON:
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return Conformance.ConformanceResponse.newBuilder().setSkipped(
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"Lite runtime does not suport Json Formant.").build();
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default: {
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throw new RuntimeException("Unexpected request output.");
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}
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}
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}
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private boolean doTestIo() throws Exception {
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int bytes = readLittleEndianIntFromStdin();
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if (bytes == -1) {
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return false; // EOF
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}
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byte[] serializedInput = new byte[bytes];
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if (!readFromStdin(serializedInput, bytes)) {
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throw new RuntimeException("Unexpected EOF from test program.");
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}
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Conformance.ConformanceRequest request =
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Conformance.ConformanceRequest.parseFrom(serializedInput);
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Conformance.ConformanceResponse response = doTest(request);
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byte[] serializedOutput = response.toByteArray();
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writeLittleEndianIntToStdout(serializedOutput.length);
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writeToStdout(serializedOutput);
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return true;
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}
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public void run() throws Exception {
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while (doTestIo()) {
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this.testCount++;
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}
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System.err.println("ConformanceJavaLite: received EOF from test runner after " +
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this.testCount + " tests");
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}
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public static void main(String[] args) throws Exception {
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new ConformanceJavaLite().run();
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}
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}
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