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Smart Contract using SBE implemented in Java (#302)

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* asset smart contract using sbe implemented in java

Signed-off-by: Gaurav Giri <girigaurav@gmail.com>

* add sbe chaincode to ci

Signed-off-by: Gaurav Giri <girigaurav@gmail.com>
This commit is contained in:
Gaurav Giri 2020-08-25 19:33:28 +05:30 committed by GitHub
parent 94faa34930
commit 67811efc92
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 867 additions and 1 deletions
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6
asset-transfer-sbe/chaincode-java/.gitattributes vendored Normal file
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#
# https://help.github.com/articles/dealing-with-line-endings/
#
# These are explicitly windows files and should use crlf
*.bat text eol=crlf

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asset-transfer-sbe/chaincode-java/.gitignore vendored Normal file
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#
# SPDX-License-Identifier: Apache-2.0
#
/.classpath
/.gradle/
/.project
/.settings/
/bin/
/build/

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asset-transfer-sbe/chaincode-java/build.gradle Normal file
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/*
* SPDX-License-Identifier: Apache-2.0
*/
plugins {
id 'application'
id 'checkstyle'
id 'jacoco'
}
group 'org.hyperledger.fabric.samples'
version '1.0-SNAPSHOT'
dependencies {
compileOnly 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.+'
implementation 'com.owlike:genson:1.5'
testImplementation 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.+'
testImplementation 'org.junit.jupiter:junit-jupiter:5.4.2'
testImplementation 'org.assertj:assertj-core:3.11.1'
testImplementation 'org.mockito:mockito-core:2.+'
}
repositories {
maven {
url "https://hyperledger.jfrog.io/hyperledger/fabric-maven"
}
jcenter()
maven {
url 'https://jitpack.io'
}
}
application {
mainClass = 'org.hyperledger.fabric.contract.ContractRouter'
}
checkstyle {
toolVersion '8.21'
configFile file("config/checkstyle/checkstyle.xml")
}
checkstyleMain {
source ='src/main/java'
}
checkstyleTest {
source ='src/test/java'
}
jacocoTestReport {
dependsOn test
}
jacocoTestCoverageVerification {
violationRules {
rule {
limit {
minimum = 0.9
}
}
}
finalizedBy jacocoTestReport
}
test {
useJUnitPlatform()
testLogging {
events "passed", "skipped", "failed"
}
}
check.dependsOn jacocoTestCoverageVerification
installDist.dependsOn check

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asset-transfer-sbe/chaincode-java/config/checkstyle/checkstyle.xml Normal file
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<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
"https://checkstyle.org/dtds/configuration_1_3.dtd">
<!--
Checkstyle configuration that matches the Eclipse formatter
Checkstyle is very configurable. Be sure to read the documentation at
http://checkstyle.sourceforge.net (or in your downloaded distribution).
Most Checks are configurable, be sure to consult the documentation.
To completely disable a check, just comment it out or delete it from the file.
Finally, it is worth reading the documentation.
-->
<module name="Checker">
<!--
If you set the basedir property below, then all reported file
names will be relative to the specified directory. See
https://checkstyle.org/5.x/config.html#Checker
<property name="basedir" value="${basedir}"/>
-->
<property name="fileExtensions" value="java, properties, xml"/>
<module name="SuppressionFilter">
<property name="file" value="${config_loc}/suppressions.xml"/>
<property name="optional" value="false"/>
</module>
<!-- Excludes all 'module-info.java' files -->
<!-- See https://checkstyle.org/config_filefilters.html -->
<module name="BeforeExecutionExclusionFileFilter">
<property name="fileNamePattern" value="module\-info\.java$"/>
</module>
<!-- Checks that a package-info.java file exists for each package. -->
<!-- See http://checkstyle.sourceforge.net/config_javadoc.html#JavadocPackage -->
<!-- <module name="JavadocPackage"/> -->
<!-- Checks whether files end with a new line. -->
<!-- See http://checkstyle.sourceforge.net/config_misc.html#NewlineAtEndOfFile -->
<module name="NewlineAtEndOfFile"/>
<!-- Checks that property files contain the same keys. -->
<!-- See http://checkstyle.sourceforge.net/config_misc.html#Translation -->
<module name="Translation"/>
<!-- Checks for Size Violations. -->
<!-- See http://checkstyle.sourceforge.net/config_sizes.html -->
<module name="FileLength"/>
<!-- Checks for whitespace -->
<!-- See http://checkstyle.sourceforge.net/config_whitespace.html -->
<module name="FileTabCharacter"/>
<!-- Miscellaneous other checks. -->
<!-- See http://checkstyle.sourceforge.net/config_misc.html -->
<module name="RegexpSingleline">
<property name="format" value="\s+$"/>
<property name="minimum" value="0"/>
<property name="maximum" value="0"/>
<property name="message" value="Line has trailing spaces."/>
</module>
<!-- Checks for Headers -->
<!-- See http://checkstyle.sourceforge.net/config_header.html -->
<!-- <module name="Header"> -->
<!-- <property name="headerFile" value="${checkstyle.header.file}"/> -->
<!-- <property name="fileExtensions" value="java"/> -->
<!-- </module> -->
<module name="TreeWalker">
<!-- Checks for Javadoc comments. -->
<!-- See http://checkstyle.sourceforge.net/config_javadoc.html -->
<!-- <module name="JavadocMethod"/> -->
<!-- <module name="JavadocType"/> -->
<!-- <module name="JavadocVariable"/> -->
<!-- <module name="JavadocStyle"/> -->
<!-- <module name="MissingJavadocMethod"/> -->
<!-- Checks for Naming Conventions. -->
<!-- See http://checkstyle.sourceforge.net/config_naming.html -->
<module name="ConstantName"/>
<module name="LocalFinalVariableName"/>
<module name="LocalVariableName"/>
<module name="PackageName"/>
<module name="StaticVariableName"/>
<module name="TypeName"/>
<!-- Checks for imports -->
<!-- See http://checkstyle.sourceforge.net/config_import.html -->
<module name="AvoidStarImport"/>
<module name="IllegalImport"/> <!-- defaults to sun.* packages -->
<module name="RedundantImport"/>
<module name="UnusedImports">
<property name="processJavadoc" value="false"/>
</module>
<!-- Checks for Size Violations. -->
<!-- See http://checkstyle.sourceforge.net/config_sizes.html -->
<module name="MethodLength"/>
<module name="ParameterNumber"/>
<!-- Checks for whitespace -->
<!-- See http://checkstyle.sourceforge.net/config_whitespace.html -->
<module name="EmptyForIteratorPad"/>
<module name="GenericWhitespace"/>
<module name="MethodParamPad"/>
<module name="NoWhitespaceAfter"/>
<module name="NoWhitespaceBefore"/>
<module name="OperatorWrap"/>
<module name="ParenPad"/>
<module name="TypecastParenPad"/>
<module name="WhitespaceAfter"/>
<module name="WhitespaceAround"/>
<!-- Modifier Checks -->
<!-- See http://checkstyle.sourceforge.net/config_modifiers.html -->
<module name="ModifierOrder"/>
<module name="RedundantModifier"/>
<!-- Checks for blocks. You know, those {}'s -->
<!-- See http://checkstyle.sourceforge.net/config_blocks.html -->
<module name="AvoidNestedBlocks"/>
<module name="EmptyBlock"/>
<module name="LeftCurly"/>
<module name="NeedBraces"/>
<module name="RightCurly"/>
<!-- Checks for common coding problems -->
<!-- See http://checkstyle.sourceforge.net/config_coding.html -->
<module name="EmptyStatement"/>
<module name="EqualsHashCode"/>
<module name="HiddenField">
<property name="ignoreConstructorParameter" value="true"/>
<property name="ignoreSetter" value="true"/>
</module>
<module name="IllegalInstantiation"/>
<module name="InnerAssignment"/>
<module name="MissingSwitchDefault"/>
<module name="MultipleVariableDeclarations"/>
<module name="SimplifyBooleanExpression"/>
<module name="SimplifyBooleanReturn"/>
<!-- Checks for class design -->
<!-- See http://checkstyle.sourceforge.net/config_design.html -->
<module name="DesignForExtension"/>
<module name="FinalClass"/>
<module name="HideUtilityClassConstructor"/>
<module name="InterfaceIsType"/>
<module name="VisibilityModifier">
<property name="allowPublicFinalFields" value="true"/>
</module>
<!-- Miscellaneous other checks. -->
<!-- See http://checkstyle.sourceforge.net/config_misc.html -->
<module name="ArrayTypeStyle"/>
<module name="FinalParameters"/>
<module name="TodoComment"/>
<module name="UpperEll"/>
</module>
</module>

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asset-transfer-sbe/chaincode-java/config/checkstyle/suppressions.xml Normal file
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<?xml version="1.0"?>
<!DOCTYPE suppressions PUBLIC
"-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
"https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
<suppress files="ChaincodeTest.java" checks="ParameterNumber" />
</suppressions>

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asset-transfer-sbe/chaincode-java/gradle/wrapper/gradle-wrapper.jar vendored Normal file
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asset-transfer-sbe/chaincode-java/gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

188
asset-transfer-sbe/chaincode-java/gradlew vendored Executable file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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asset-transfer-sbe/chaincode-java/settings.gradle Normal file
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/*
* SPDX-License-Identifier: Apache-2.0
*/
rootProject.name = 'sbe'

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asset-transfer-sbe/chaincode-java/src/main/java/org/hyperledger/fabric/samples/sbe/Asset.java Normal file
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/*
* SPDX-License-Identifier: Apache-2.0
*/
package org.hyperledger.fabric.samples.sbe;
import java.util.Objects;
import org.hyperledger.fabric.contract.annotation.DataType;
import org.hyperledger.fabric.contract.annotation.Property;
import com.owlike.genson.annotation.JsonProperty;
@DataType()
public final class Asset {
@Property()
private final String id;
@Property()
private int value;
@Property()
private String owner;
@Property()
private String ownerOrg;
public String getId() {
return id;
}
public int getValue() {
return value;
}
public String getOwner() {
return owner;
}
public String getOwnerOrg() {
return ownerOrg;
}
public void setValue(final int value) {
this.value = value;
}
public void setOwner(final String owner) {
this.owner = owner;
}
public void setOwnerOrg(final String ownerOrg) {
this.ownerOrg = ownerOrg;
}
public Asset(@JsonProperty("id") final String id, @JsonProperty("value") final int value,
@JsonProperty("owner") final String owner, @JsonProperty("ownerOrg") final String ownerOrg) {
this.id = id;
this.value = value;
this.owner = owner;
this.ownerOrg = ownerOrg;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Asset asset = (Asset) o;
return getValue() == asset.getValue()
&&
getId().equals(asset.getId())
&&
getOwner().equals(asset.getOwner())
&&
getOwnerOrg().equals(asset.getOwnerOrg());
}
@Override
public int hashCode() {
return Objects.hash(getId(), getValue(), getOwner(), getOwnerOrg());
}
@Override
public String toString() {
return "Asset{" + "id='" + id + '\'' + ", value=" + value + ", owner='"
+ owner + '\'' + ", ownerOrg='" + ownerOrg + '\'' + '}';
}
}

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asset-transfer-sbe/chaincode-java/src/main/java/org/hyperledger/fabric/samples/sbe/AssetContract.java Normal file
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/*
* SPDX-License-Identifier: Apache-2.0
*/
package org.hyperledger.fabric.samples.sbe;
import org.hyperledger.fabric.contract.Context;
import org.hyperledger.fabric.contract.ContractInterface;
import org.hyperledger.fabric.contract.annotation.Contract;
import org.hyperledger.fabric.contract.annotation.Default;
import org.hyperledger.fabric.contract.annotation.Info;
import org.hyperledger.fabric.contract.annotation.License;
import org.hyperledger.fabric.contract.annotation.Transaction;
import org.hyperledger.fabric.shim.ChaincodeException;
import org.hyperledger.fabric.shim.ChaincodeStub;
import org.hyperledger.fabric.shim.ext.sbe.StateBasedEndorsement;
import org.hyperledger.fabric.shim.ext.sbe.impl.StateBasedEndorsementFactory;
import com.owlike.genson.Genson;
@Contract(
name = "sbe",
info = @Info(
title = "Asset Contract",
description = "Asset Transfer Smart Contract, using State Based Endorsement(SBE), implemented in Java",
version = "0.0.1-SNAPSHOT",
license = @License(
name = "Apache 2.0 License",
url = "http://www.apache.org/licenses/LICENSE-2.0.html")))
@Default
public final class AssetContract implements ContractInterface {
private final Genson genson = new Genson();
private enum AssetTransferErrors {
ASSET_NOT_FOUND,
ASSET_ALREADY_EXISTS
}
/**
* Creates a new asset.
* Sets the endorsement policy of the assetId Key, such that current owner Org Peer is required to endorse future updates.
*
* @param ctx the transaction context
* @param assetId the id of the new asset
* @param value the value of the new asset
* @param owner the owner of the new asset
* @return the created asset
*/
@Transaction(intent = Transaction.TYPE.SUBMIT)
public Asset CreateAsset(final Context ctx, final String assetId, final int value, final String owner) {
ChaincodeStub stub = ctx.getStub();
if (AssetExists(ctx, assetId)) {
String errorMessage = String.format("Asset %s already exists", assetId);
System.out.println(errorMessage);
throw new ChaincodeException(errorMessage, AssetTransferErrors.ASSET_ALREADY_EXISTS.toString());
}
final String ownerOrg = getClientOrgId(ctx);
Asset asset = new Asset(assetId, value, owner, ownerOrg);
String assetJSON = genson.serialize(asset);
stub.putStringState(assetId, assetJSON);
setAssetStateBasedEndorsement(ctx, assetId, new String[]{ownerOrg});
return asset;
}
/**
* Retrieves an asset with the given assetId.
*
* @param ctx the transaction context
* @param assetId the id of the asset
* @return the asset found on the ledger if there was one
*/
@Transaction(intent = Transaction.TYPE.EVALUATE)
public Asset ReadAsset(final Context ctx, final String assetId) {
ChaincodeStub stub = ctx.getStub();
String assetJSON = stub.getStringState(assetId);
if (assetJSON == null || assetJSON.isEmpty()) {
String errorMessage = String.format("Asset %s does not exist", assetId);
System.out.println(errorMessage);
throw new ChaincodeException(errorMessage, AssetTransferErrors.ASSET_NOT_FOUND.toString());
}
Asset asset = genson.deserialize(assetJSON, Asset.class);
return asset;
}
/**
* Updates the properties of an existing asset.
* Needs an endorsement of current owner Org Peer.
*
* @param ctx the transaction context
* @param assetId the id of the asset being updated
* @param newValue the value of the asset being updated
* @return the updated asset
*/
@Transaction(intent = Transaction.TYPE.SUBMIT)
public Asset UpdateAsset(final Context ctx, final String assetId, final int newValue) {
ChaincodeStub stub = ctx.getStub();
Asset asset = ReadAsset(ctx, assetId);
asset.setValue(newValue);
String updatedAssetJSON = genson.serialize(asset);
stub.putStringState(assetId, updatedAssetJSON);
return asset;
}
/**
* Deletes the given asset.
* Needs an endorsement of current owner Org Peer.
*
* @param ctx the transaction context
* @param assetId the id of the asset being deleted
*/
@Transaction(intent = Transaction.TYPE.SUBMIT)
public void DeleteAsset(final Context ctx, final String assetId) {
ChaincodeStub stub = ctx.getStub();
if (!AssetExists(ctx, assetId)) {
String errorMessage = String.format("Asset %s does not exist", assetId);
System.out.println(errorMessage);
throw new ChaincodeException(errorMessage, AssetTransferErrors.ASSET_NOT_FOUND.toString());
}
stub.delState(assetId);
}
/**
* Updates the owner & ownerOrg field of asset with given assetId, ownerOrg must be a valid Org MSP Id.
* Needs an endorsement of current owner Org Peer.
* Re-sets the endorsement policy of the assetId Key, such that new owner Org Peer is required to endorse future updates.
*
* @param ctx the transaction context
* @param assetId the id of the asset being transferred
* @param newOwner the new owner
* @param newOwnerOrg the new owner Org MSPID
* @return the updated asset
*/
@Transaction(intent = Transaction.TYPE.SUBMIT)
public Asset TransferAsset(final Context ctx, final String assetId, final String newOwner, final String newOwnerOrg) {
ChaincodeStub stub = ctx.getStub();
Asset asset = ReadAsset(ctx, assetId);
asset.setOwner(newOwner);
asset.setOwnerOrg(newOwnerOrg);
String updatedAssetJSON = genson.serialize(asset);
stub.putStringState(assetId, updatedAssetJSON);
setAssetStateBasedEndorsement(ctx, assetId, new String[]{newOwnerOrg});
return asset;
}
/**
* Checks the existence of the asset.
*
* @param ctx the transaction context
* @param assetId the id of the asset
* @return boolean indicating the existence of the asset
*/
private boolean AssetExists(final Context ctx, final String assetId) {
ChaincodeStub stub = ctx.getStub();
String assetJSON = stub.getStringState(assetId);
return (assetJSON != null && !assetJSON.isEmpty());
}
/**
* Sets an endorsement policy to the assetId Key.
* Enforces that the owner Org Peers must endorse future update transactions for the specified assetId Key.
*
* @param ctx the transaction context
* @param assetId the id of the asset
* @param ownerOrgs the list of Owner Org MSPID's
*/
private void setAssetStateBasedEndorsement(final Context ctx, final String assetId, final String[] ownerOrgs) {
StateBasedEndorsement stateBasedEndorsement = StateBasedEndorsementFactory.getInstance().newStateBasedEndorsement(null);
stateBasedEndorsement.addOrgs(StateBasedEndorsement.RoleType.RoleTypeMember, ownerOrgs);
ctx.getStub().setStateValidationParameter(assetId, stateBasedEndorsement.policy());
}
/**
* Retrieves the client's OrgId (MSPID)
*
* @param ctx the transaction context
* @return String value of the Org MSPID
*/
private String getClientOrgId(final Context ctx) {
return ctx.getClientIdentity().getMSPID();
}
}

9
ci/azure-pipelines.yml
View file

@ -128,6 +128,10 @@ jobs:
DIRECTORY: asset-transfer-sbe
LANGUAGE: typescript
TYPE: chaincode
SBE-Chaincode-Java:
DIRECTORY: asset-transfer-sbe
LANGUAGE: java
TYPE: chaincode
Secured-Chaincode-Go:
DIRECTORY: asset-transfer-secured-agreement
LANGUAGE: go
@ -211,11 +215,14 @@ jobs:
SBE-Typescript:
CHAINCODE_NAME: sbe
CHAINCODE_LANGUAGE: typescript
SBE-Java:
CHAINCODE_NAME: sbe
CHAINCODE_LANGUAGE: java
steps:
- template: templates/install-deps.yml
- script: ../ci/scripts/run-test-network-sbe.sh
workingDirectory: test-network
displayName: Run Test Network Private Chaincode
displayName: Run Test Network SBE Chaincode
- job: TestNetworkSecured
displayName: Test Network