使用JAVA程序中的dcm4che连接到dcm4chee

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我在dcm4che的源代码中进行了更深入的挖掘，发现IncompatibleConnectionException如果

• 连接“未安装”
• 或协议类型未设置或不匹配。

我不知道连接已“安装”是什么意思，但是可以手动设置此标志，因此我将其设置为本地和远程连接true（甚至检查getInstalled()是否已“安装”）-是的，现在-以前此属性为null）。

至于协议，未指定它们，因此对于两个连接，我都将它们设置为DICOM。

结果：我仍然收到相同的异常。

---

我想使用dcm4che（5.12.0）工具包在dcm4chee（2.18.3）和我的JAVA应用程序之间建立DICOM关联。

问题在于，似乎没有任何有关如何在JAVA应用程序中使用dcm4che的文档，因此，我所能做的就是阅读dcm4che的源代码，并尝试弄清其类和方法的用途，但是我卡住了 如果有人已经有了一个可行的例子，那将非常有帮助。

到目前为止，我有：

import org.dcm4che3.net.ApplicationEntity;
import org.dcm4che3.net.Association;
import org.dcm4che3.net.Connection;
import org.dcm4che3.net.Device;
import org.dcm4che3.net.pdu.AAssociateRQ;
import org.dcm4che3.net.pdu.PresentationContext;

...

ApplicationEntity locAE = new ApplicationEntity();
locAE.setAETitle("THIS_JAVA_APP");

Connection localConn = new Connection();
localConn.setCommonName("loc_conn");
localConn.setHostname("localhost");
localConn.setPort(11112);
localConn.setProtocol(Connection.Protocol.DICOM);
localConn.setInstalled(true);
locAE.addConnection(localConn);

ApplicationEntity remAE = new ApplicationEntity();
remAE.setAETitle("DCM4CHEE");

Connection remoteConn = new Connection();
remoteConn.setCommonName("rem_conn");
remoteConn.setHostname("localhost");
remoteConn.setPort(11112);
remoteConn.setProtocol(Connection.Protocol.DICOM);
remoteConn.setInstalled(true);
remAE.addConnection(remoteConn);

AAssociateRQ assocReq = new AAssociateRQ();
assocReq.setCalledAET(remAE.getAETitle());
assocReq.setCallingAET(locAE.getAETitle());
assocReq.setApplicationContext("1.2.840.10008.3.1.1.1");
assocReq.setImplClassUID("1.2.40.0.13.1.3");
assocReq.setImplVersionName("dcm4che-5.12.0");
assocReq.setMaxPDULength(16384);
assocReq.setMaxOpsInvoked(0);
assocReq.setMaxOpsPerformed(0);
assocReq.addPresentationContext(new PresentationContext(
    1, "1.2.840.10008.1.1", "1.2.840.10008.1.2"));

Device device = new Device("device");
device.addConnection(localConn);
device.addApplicationEntity(locAE);

Association assoc = locAE.connect(remAE, assocReq);

但我不知道自己是否走对了。

我得到的错误：

org.dcm4che3.net.IncompatibleConnectionException: No compatible connection to DCM4CHEE available on THIS_JAVA_APP
at org.dcm4che3.net.ApplicationEntity.findCompatibelConnection(ApplicationEntity.java:646)
at org.dcm4che3.net.ApplicationEntity.connect(ApplicationEntity.java:651)

Answer 1

这是工作代码：（我不知道这是否是最小的解决方案，请随意尝试......）

ApplicationEntity locAE = new ApplicationEntity();
locAE.setAETitle("THIS_JAVA_APP");
locAE.setInstalled(true);

Connection localConn = new Connection();
localConn.setCommonName("loc_conn");
localConn.setHostname("localhost");
localConn.setPort(11112);
localConn.setProtocol(Connection.Protocol.DICOM);
localConn.setInstalled(true);
locAE.addConnection(localConn);

ApplicationEntity remAE = new ApplicationEntity();
remAE.setAETitle("DCM4CHEE");
remAE.setInstalled(true);

Connection remoteConn = new Connection();
remoteConn.setCommonName("rem_conn");
remoteConn.setHostname("localhost");
remoteConn.setPort(11112);
remoteConn.setProtocol(Connection.Protocol.DICOM);
remoteConn.setInstalled(true);
remAE.addConnection(remoteConn);

AAssociateRQ assocReq = new AAssociateRQ();
assocReq.setCalledAET(remAE.getAETitle());
assocReq.setCallingAET(locAE.getAETitle());
assocReq.setApplicationContext("1.2.840.10008.3.1.1.1");
assocReq.setImplClassUID("1.2.40.0.13.1.3");
assocReq.setImplVersionName("dcm4che-5.12.0");
assocReq.setMaxPDULength(16384);
assocReq.setMaxOpsInvoked(0);
assocReq.setMaxOpsPerformed(0);
assocReq.addPresentationContext(new PresentationContext(
    1, "1.2.840.10008.1.1", "1.2.840.10008.1.2"));

Device device = new Device("device");
device.addConnection(localConn);
device.addApplicationEntity(locAE);

Executor exec = (Runnable command) -> {};
device.setExecutor(exec);

Association assoc = locAE.connect(localConn, remoteConn, assocReq);

以及相关的 dcm4chee 日志：

2018-03-02 23:21:42,832 INFO  THIS_JAVA_APP->DCM4CHEE (TCPServer-1) [org.dcm4cheri.net.FsmImpl] received AAssociateRQ
    appCtxName: 1.2.840.10008.3.1.1.1/DICOM Application Context Name
    implClass:  1.2.40.0.13.1.3
    implVersion:    dcm4che-5.12.0
    calledAET:  DCM4CHEE
    callingAET: THIS_JAVA_APP
    maxPDULen:  16378
    asyncOpsWindow: 
    pc-1:   as=1.2.840.10008.1.1/Verification SOP Class
        ts=1.2.840.10008.1.2/Implicit VR Little Endian
2018-03-02 23:21:42,843 INFO  THIS_JAVA_APP->DCM4CHEE (TCPServer-1) [org.dcm4cheri.net.FsmImpl] sending AAssociateAC
    appCtxName: 1.2.840.10008.3.1.1.1/DICOM Application Context Name
    implClass:  1.2.40.0.13.1.1.1
    implVersion:    dcm4che-1.4.34
    calledAET:  DCM4CHEE
    callingAET: THIS_JAVA_APP
    maxPDULen:  16352
    asyncOpsWindow: 
    pc-1:   0 - acceptance
        ts=1.2.840.10008.1.2/Implicit VR Little Endian

建立关联后，请参阅另一篇文章，了解如何执行 C-FIND。