openOutArchiveZip error

[VoidK2]

i download you project as module of my app, but it is run error. here is my log:

2021-06-28 16:05:31.407 31522-31522/me.zhanghai.android.files A/i.android.file: java_vm_ext.cc:570] JNI DETECTED ERROR IN APPLICATION: JNI GetObjectClass called with pending exception java.lang.ClassNotFoundException: Didn't find class "net.sf.sevenzipjbinding.junit.jbindingtools.Callback1" on path: DexPathList[[zip file "/data/app/me.zhanghai.android.files-m6S3hIFb-vFHBLlvPO81pw==/base.apk"],nativeLibraryDirectories=[/data/app/me.zhanghai.android.files-m6S3hIFb-vFHBLlvPO81pw==/lib/arm64, /data/app/me.zhanghai.android.files-m6S3hIFb-vFHBLlvPO81pw==/base.apk!/lib/arm64-v8a, /system/lib64, /system/product/lib64]]

and my code :

override fun archive3(fileName: String, level: Int) {
    val TAG = "123"
    val path = viewModel.currentPath.resolve(fileName).toString()
    var success = false
    var raf: RandomAccessFile? = null
    var outArchive: IOutCreateArchiveZip? = null
    try {
        raf = RandomAccessFile(path, "rw")
        outArchive = SevenZip.openOutArchiveZip()
        outArchive.setLevel(level)
        outArchive.createArchive(RandomAccessFileOutStream(raf),1,object :IOutCreateCallback<IOutItemZip>{
            override fun setTotal(total: Long) {
                Log.i(TAG,"1:"+total.toString())
            }

            override fun setCompleted(complete: Long) {
                Log.i(TAG,"2:"+complete.toString())
            }

            override fun setOperationResult(operationResultOk: Boolean) {
                Log.i(TAG,"3:"+operationResultOk.toString())
            }

            override fun getStream(index: Int): ISequentialInStream? {
                return null
            }

            override fun getItemInformation(
                index: Int,
                outItemFactory: OutItemFactory<IOutItemZip>?
            ): IOutItemZip? {
                return null
            }

        })
    } catch (e: SevenZipException) {
        Log.i(TAG, e.message.toString())
    } catch (e: Exception) {
        Log.i(TAG, e.message.toString())
    } finally {
        if (outArchive != null) {
            try {
                outArchive.close()
            } catch (e: IOException) {
                Log.i(TAG, e.message.toString())
                success = false
            }
        }
        if (raf != null) {
            try {
                raf.close()
            } catch (e: IOException) {
                Log.i(TAG, e.message.toString())
                success = false
            }
        }
    }
    if (success) {
        Log.i(TAG, "Compression operation succeeded")
    }
}

[omicronapps]

I created the following project and included your sample code: https://github.com/omicronapps/Archive3

This works fine after adding just a couple of lines of code that were missing in your sample code.

Also see here for instructions on how to create a Zip archive: http://sevenzipjbind.sourceforge.net/compression_snippets.html#create-specific-api-zip

import android.os.Bundle
import android.util.Log
import androidx.appcompat.app.AppCompatActivity
import net.sf.sevenzipjbinding.*
import net.sf.sevenzipjbinding.impl.OutItemFactory
import net.sf.sevenzipjbinding.impl.RandomAccessFileOutStream
import net.sf.sevenzipjbinding.util.ByteArrayStream
import java.io.File
import java.io.IOException
import java.io.RandomAccessFile


class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        archive3("test.zip", 1);
    }

    fun archive3(fileName: String, level: Int) {
        val TAG = "123"
        val path = File(filesDir, fileName);//viewModel.currentPath.resolve(fileName).toString()
        var success = true
        var raf: RandomAccessFile? = null
        var outArchive: IOutCreateArchiveZip? = null
        try {
            raf = RandomAccessFile(path, "rw")
            outArchive = SevenZip.openOutArchiveZip()
            outArchive.setLevel(level)
            outArchive.createArchive(RandomAccessFileOutStream(raf),1,object :IOutCreateCallback<IOutItemZip>{
                override fun setTotal(total: Long) {
                    Log.i(TAG,"1:"+total.toString())
                }

                override fun setCompleted(complete: Long) {
                    Log.i(TAG,"2:"+complete.toString())
                }

                override fun setOperationResult(operationResultOk: Boolean) {
                    Log.i(TAG,"3:"+operationResultOk.toString())
                }

                override fun getStream(index: Int): ISequentialInStream? {
                    val content = byteArrayOf(0, 1, 2, 3);
                    return ByteArrayStream(content, true)
                }

                override fun getItemInformation(
                    index: Int,
                    outItemFactory: OutItemFactory<IOutItemZip>?
                ): IOutItemZip? {
                    val item = outItemFactory!!.createOutItem()
                    item.dataSize = 4;
                    item.propertyPath = "path";
                    return item
                }

            })
        } catch (e: SevenZipException) {
            Log.i(TAG, e.message.toString())
            success = false
        } catch (e: Exception) {
            Log.i(TAG, e.message.toString())
            success = false
        } finally {
            if (outArchive != null) {
                try {
                    outArchive.close()
                } catch (e: IOException) {
                    Log.i(TAG, e.message.toString())
                    success = false
                }
            }
            if (raf != null) {
                try {
                    raf.close()
                } catch (e: IOException) {
                    Log.i(TAG, e.message.toString())
                    success = false
                }
            }
        }
        if (success) {
            Log.i(TAG, "Compression operation succeeded")
        }
    }
}

[VoidK2]

i have solve this problem with same solution, thank for your help. have working on it for 4 weeks. may be i can add some example in readme.

[omicronapps]

Sure. Please feel free to open a pull request with changes to README.md.

[asthagarg2428]

@VoidK2 Can you please help me with https://github.com/omicronapps/7-Zip-JBinding-4Android/issues/22

[VoidK2]

Find the reason why ZIP format cannot be compressed，the return parameter type of IOutCreateCallback is ISequentialInStream，but in jni level ，is running as random access。 so it need ISeekableStream 。 we need IInStream in this callback when compress zip archive, not ISequentialInStream.