How to convert a string to a SOAPMessage in Java?

Question

I wonder is there any way to convert a string to SOAPMessage?

Let me say I have a string as follows:

String send = "

        

Answer 1

I've measured feeding SOAPMessage with SAXSource to be about 50% faster than internal SAAJ parsing implementation used in the accepted answer:

SOAPMessage message = messageFactory.createMessage();
message.getSOAPPart().setContent(new SAXSource(new InputSource(new StringReader(send))));

Here is the benchmark testing various XML parsing sources and factory caching impact:

/*
Benchmark (jdk1.8.0_202 32-bit)                                       Mode  Cnt     Score     Error  Units
SoapMessageBenchmark.testCreateMessage                               thrpt  100  4156,685 ? 215,571  ops/s
SoapMessageBenchmark.testCreateMessageWithMessageFactoryNotCached    thrpt  100  3709,299 ? 115,495  ops/s
SoapMessageBenchmark.testSetContentDom                               thrpt  100  5935,972 ? 215,389  ops/s
SoapMessageBenchmark.testSetContentDomWithDocumentBuilderNotCached   thrpt  100  3433,539 ? 218,889  ops/s
SoapMessageBenchmark.testSetContentSax                               thrpt  100  6693,179 ? 319,581  ops/s
SoapMessageBenchmark.testSetContentSaxAndExtractContentAsDocument    thrpt  100  4109,924 ? 229,987  ops/s
SoapMessageBenchmark.testSetContentStax                              thrpt  100  5126,822 ? 249,648  ops/s
SoapMessageBenchmark.testSetContentStaxWithXmlInputFactoryNotCached  thrpt  100  4630,860 ? 235,773  ops/s
*/

package org.sample;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Timeout;
import org.openjdk.jmh.annotations.Warmup;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPConstants;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPMessage;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.util.StreamReaderDelegate;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stax.StAXSource;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.TimeUnit;

@BenchmarkMode(Mode.Throughput)
@Warmup(iterations = 10, time = 100, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 100, timeUnit = TimeUnit.MILLISECONDS)
@Timeout(time = 10)
public class SoapMessageBenchmark {

    private static MessageFactory messageFactory;
    private static DocumentBuilder documentBuilder;
    private static XMLInputFactory xmlInputFactory;

    static {
        try {
            documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
            xmlInputFactory = XMLInputFactory.newInstance();
        } catch (SOAPException | ParserConfigurationException e) {
            throw new IllegalStateException(e);
        }
    }

    @State(Scope.Benchmark)
    public static class S {
        byte[] bytes = ("\n" +
                                "  \n" +
                                "    \n" +
                                "      xxxxxxxxxxxxxxxxxxxx\n" +
                                "      1063\n" +
                                "    \n" +
                                "  \n" +
                                "  \n" +
                                "    \n" +
                                "      \n" +
                                "        1\n" +
                                "        0\n" +
                                "        \n" +
                                "          2372\n" +
                                "          RootAdUnit\n" +
                                "          \n" +
                                "          TOP\n" +
                                "          ACTIVE\n" +
                                "          1002372\n" +
                                "          \n" +
                                "            \n" +
                                "              true\n" +
                                "              FFFFFF\n" +
                                "              0000FF\n" +
                                "              FFFFFF\n" +
                                "              000000\n" +
                                "              008000\n" +
                                "              TEXT_AND_IMAGE\n" +
                                "              DEFAULT\n" +
                                "              DEFAULT\n" +
                                "              DEFAULT\n" +
                                "            \n" +
                                "          \n" +
                                "        \n" +
                                "      \n" +
                                "    \n" +
                                "  \n" +
                                "").getBytes();
    }

    @Benchmark
    public SOAPBody testCreateMessage(S s) throws SOAPException, IOException {
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            SOAPMessage message = messageFactory.createMessage(null, inputStream);
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public SOAPBody testCreateMessageWithMessageFactoryNotCached(S s) throws SOAPException, IOException {
        MessageFactory messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            SOAPMessage message = messageFactory.createMessage(null, inputStream);
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public SOAPBody testSetContentDom(S s) throws SOAPException, IOException, SAXException {
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            Document document = documentBuilder.parse(inputStream);
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new DOMSource(document));
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public SOAPBody testSetContentDomWithDocumentBuilderNotCached(S s) throws SOAPException, IOException, SAXException, ParserConfigurationException {
        DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            Document document = documentBuilder.parse(inputStream);
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new DOMSource(document));
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public SOAPBody testSetContentSax(S s) throws SOAPException, IOException {
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new SAXSource(new InputSource(inputStream)));
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public Document testSetContentSaxAndExtractContentAsDocument(S s) throws SOAPException, IOException {
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new SAXSource(new InputSource(inputStream)));
            return message.getSOAPBody().extractContentAsDocument();
        }
    }

    @Benchmark
    public SOAPBody testSetContentStax(S s) throws SOAPException, IOException, XMLStreamException {
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            XMLStreamReader xmlStreamReader = new StreamReaderDelegate(xmlInputFactory.createXMLStreamReader(inputStream)) {
                @Override
                public String getVersion() {
                    return "1.1";
                }
            };
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new StAXSource(xmlStreamReader));
            return message.getSOAPBody();
        }
    }

    @Benchmark
    public SOAPBody testSetContentStaxWithXmlInputFactoryNotCached(S s) throws SOAPException, IOException, XMLStreamException {
        XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
        try (InputStream inputStream = new ByteArrayInputStream(s.bytes)) {
            XMLStreamReader xmlStreamReader = new StreamReaderDelegate(xmlInputFactory.createXMLStreamReader(inputStream)) {
                @Override
                public String getVersion() {
                    return "1.1";
                }
            };
            SOAPMessage message = messageFactory.createMessage();
            message.getSOAPPart().setContent(new StAXSource(xmlStreamReader));
            return message.getSOAPBody();
        }
    }

}