diff --git a/asset-transfer-ledger-queries/chaincode-java/.gitattributes b/asset-transfer-ledger-queries/chaincode-java/.gitattributes new file mode 100644 index 00000000..00a51aff --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/.gitattributes @@ -0,0 +1,6 @@ +# +# https://help.github.com/articles/dealing-with-line-endings/ +# +# These are explicitly windows files and should use crlf +*.bat text eol=crlf + diff --git a/asset-transfer-ledger-queries/chaincode-java/.gitignore b/asset-transfer-ledger-queries/chaincode-java/.gitignore new file mode 100644 index 00000000..bd6fd304 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/.gitignore @@ -0,0 +1,2 @@ +.idea/ +.gradle/ diff --git a/asset-transfer-ledger-queries/chaincode-java/Dockerfile b/asset-transfer-ledger-queries/chaincode-java/Dockerfile new file mode 100644 index 00000000..9849aaf4 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/Dockerfile @@ -0,0 +1,31 @@ +# the first stage +FROM gradle:9-jdk25 AS gradle_build + +# copy the build.gradle and src code to the container +COPY src/ src/ +COPY build.gradle ./ + +# Build and package our code +RUN gradle --no-daemon build shadowJar -x checkstyleMain -x checkstyleTest + + +# the second stage of our build just needs the compiled files +FROM eclipse-temurin:25-jre +ARG CC_SERVER_PORT=9999 + +# Setup tini to work better handle signals +ENV TINI_VERSION=v0.19.0 +ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /tini +RUN chmod +x /tini + +RUN addgroup --system javauser && useradd -g javauser javauser + +# copy only the artifacts we need from the first stage and discard the rest +COPY --chown=javauser:javauser --from=gradle_build /home/gradle/build/libs/chaincode.jar /chaincode.jar +COPY --chown=javauser:javauser docker/docker-entrypoint.sh /docker-entrypoint.sh + +ENV PORT=$CC_SERVER_PORT +EXPOSE $CC_SERVER_PORT + +USER javauser +ENTRYPOINT [ "/tini", "--", "/docker-entrypoint.sh" ] diff --git a/asset-transfer-ledger-queries/chaincode-java/build.gradle b/asset-transfer-ledger-queries/chaincode-java/build.gradle new file mode 100644 index 00000000..c10d679f --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/build.gradle @@ -0,0 +1,91 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +plugins { + id 'com.gradleup.shadow' version '9.2.2' + id 'application' + id 'checkstyle' + id 'jacoco' +} + +group 'org.hyperledger.fabric.samples' +version '1.0-SNAPSHOT' + +dependencies { + implementation 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.5.+' + implementation 'org.json:json:+' + implementation 'com.owlike:genson:1.6' + testImplementation platform('org.junit:junit-bom:5.14.0') + testImplementation 'org.junit.jupiter:junit-jupiter' + testImplementation 'org.assertj:assertj-core:3.27.6' + testImplementation 'org.mockito:mockito-core:5.20.0' + testRuntimeOnly 'org.junit.platform:junit-platform-launcher' +} + +repositories { + mavenCentral() + maven { + url 'https://jitpack.io' + } +} + +compileJava { + options.release = 11 +} + +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" + } +} + +shadowJar { + archiveBaseName = 'chaincode' + archiveVersion = '' + archiveClassifier = '' + + duplicatesStrategy = DuplicatesStrategy.INCLUDE + mergeServiceFiles() + + manifest { + attributes 'Main-Class': 'org.hyperledger.fabric.contract.ContractRouter' + } +} + +check.dependsOn jacocoTestCoverageVerification +installDist.dependsOn check diff --git a/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.jar b/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 00000000..8bdaf60c Binary files /dev/null and b/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.jar differ diff --git a/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.properties b/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 00000000..2e111328 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,7 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/asset-transfer-ledger-queries/chaincode-java/gradlew b/asset-transfer-ledger-queries/chaincode-java/gradlew new file mode 100644 index 00000000..adff685a --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/gradlew @@ -0,0 +1,248 @@ +#!/bin/sh + +# +# Copyright © 2015 the original 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. +# +# SPDX-License-Identifier: Apache-2.0 +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + + + +# Determine the Java command to use to start the JVM. +if [ -n "$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: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# 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"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/asset-transfer-ledger-queries/chaincode-java/gradlew.bat b/asset-transfer-ledger-queries/chaincode-java/gradlew.bat new file mode 100644 index 00000000..c4bdd3ab --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/gradlew.bat @@ -0,0 +1,93 @@ +@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 +@rem SPDX-License-Identifier: Apache-2.0 +@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=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@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% equ 0 goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:execute +@rem Setup the command line + + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 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! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/asset-transfer-ledger-queries/chaincode-java/settings.gradle b/asset-transfer-ledger-queries/chaincode-java/settings.gradle new file mode 100644 index 00000000..e2816173 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/settings.gradle @@ -0,0 +1,4 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ +rootProject.name = 'ledger-queries' \ No newline at end of file diff --git a/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/Asset.java b/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/Asset.java new file mode 100644 index 00000000..ff077ab9 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/Asset.java @@ -0,0 +1,101 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +package org.hyperledger.fabric.samples.assettransfer; + +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 docType; + + @Property() + private final String assetID; + + @Property() + private final String color; + + @Property() + private final int size; + + @Property() + private final String owner; + + @Property() + private final int appraisedValue; + + public String getDocType() { + return docType; + } + + public String getAssetID() { + return assetID; + } + + public String getColor() { + return color; + } + + public int getSize() { + return size; + } + + public String getOwner() { + return owner; + } + + public int getAppraisedValue() { + return appraisedValue; + } + + public Asset(@JsonProperty("docType") final String docType, @JsonProperty("assetID") final String assetID, + @JsonProperty("color") final String color, @JsonProperty("size") final int size, + @JsonProperty("owner") final String owner, @JsonProperty("appraisedValue") final int appraisedValue) { + this.docType = docType; + this.assetID = assetID; + this.color = color; + this.size = size; + this.owner = owner; + this.appraisedValue = appraisedValue; + } + + @Override + public boolean equals(final Object obj) { + if (this == obj) { + return true; + } + + if ((obj == null) || (getClass() != obj.getClass())) { + return false; + } + + Asset other = (Asset) obj; + + return Objects.deepEquals( + new String[] {getDocType(), getAssetID(), getColor(), getOwner()}, + new String[] {other.getDocType(), other.getAssetID(), other.getColor(), other.getOwner()}) + && + Objects.deepEquals( + new int[] {getSize(), getAppraisedValue()}, + new int[] {other.getSize(), other.getAppraisedValue()}); + } + + @Override + public int hashCode() { + return Objects.hash(getDocType(), getAssetID(), getColor(), getSize(), getOwner(), getAppraisedValue()); + } + + @Override + public String toString() { + return this.getClass().getSimpleName() + "@" + Integer.toHexString(hashCode()) + " [docType=" + docType + ", assetID=" + assetID + ", color=" + + color + ", size=" + size + ", owner=" + owner + ", appraisedValue=" + appraisedValue + "]"; + } +} diff --git a/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/AssetTransfer.java b/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/AssetTransfer.java new file mode 100644 index 00000000..cf3049fd --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/AssetTransfer.java @@ -0,0 +1,260 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +package org.hyperledger.fabric.samples.assettransfer; + +import java.util.ArrayList; +import java.util.List; + +import org.hyperledger.fabric.contract.Context; +import org.hyperledger.fabric.contract.ContractInterface; +import org.hyperledger.fabric.contract.annotation.Contact; +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.ledger.KeyModification; +import org.hyperledger.fabric.shim.ledger.KeyValue; +import org.hyperledger.fabric.shim.ledger.QueryResultsIterator; +import org.hyperledger.fabric.shim.ledger.QueryResultsIteratorWithMetadata; + +import com.owlike.genson.Genson; + +@Contract( + name = "ledger-queries", + info = @Info( + title = "Asset Transfer Ledger Queries", + description = "The hyperlegendary asset transfer with ledger queries", + version = "0.0.1+SNAPSHOT", + license = @License( + name = "Apache 2.0 License", + url = "http://www.apache.org/licenses/LICENSE-2.0.html"), + contact = @Contact( + email = "a.transfer@example.com", + name = "Adrian Transfer", + url = "https://hyperledger.example.com"))) +@Default +public final class AssetTransfer implements ContractInterface { + + private final Genson genson = new Genson(); + + private enum AssetTransferErrors { + ASSET_NOT_FOUND, + ASSET_ALREADY_EXISTS + } + + /** + * Creates some initial assets on the ledger. + * + * @param ctx the transaction context + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public void InitLedger(final Context ctx) { + putAsset(ctx, new Asset("asset", "asset1", "blue", 5, "Tomoko", 300)); + putAsset(ctx, new Asset("asset", "asset2", "red", 5, "Brad", 400)); + putAsset(ctx, new Asset("asset", "asset3", "green", 10, "Jin Soo", 500)); + putAsset(ctx, new Asset("asset", "asset4", "yellow", 10, "Max", 600)); + putAsset(ctx, new Asset("asset", "asset5", "black", 15, "Adrian", 700)); + putAsset(ctx, new Asset("asset", "asset6", "white", 15, "Michel", 700)); + + } + + /** + * Creates a new asset on the ledger. + * + * @param ctx the transaction context + * @param assetID the ID of the new asset + * @param color the color of the new asset + * @param size the size for the new asset + * @param owner the owner of the new asset + * @param appraisedValue the appraisedValue of the new asset + * @return the created asset + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public Asset CreateAsset(final Context ctx, final String assetID, final String color, final int size, + final String owner, final int appraisedValue) { + + 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()); + } + + return putAsset(ctx, new Asset("asset", assetID, color, size, owner, appraisedValue)); + } + + private Asset putAsset(final Context ctx, final Asset asset) { + String sortedJson = genson.serialize(asset); + ctx.getStub().putStringState(asset.getAssetID(), sortedJson); + + return asset; + } + + /** + * Retrieves an asset with the specified ID from the ledger. + * + * @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) { + String assetJSON = ctx.getStub().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()); + } + + return genson.deserialize(assetJSON, Asset.class); + } + + /** + * Updates the properties of an asset on the ledger. + * + * @param ctx the transaction context + * @param assetID the ID of the asset being updated + * @param color the color of the asset being updated + * @param size the size of the asset being updated + * @param owner the owner of the asset being updated + * @param appraisedValue the appraisedValue of the asset being updated + * @return the transferred asset + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public Asset UpdateAsset(final Context ctx, final String assetID, final String color, final int size, + final String owner, final int appraisedValue) { + + 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()); + } + + return putAsset(ctx, new Asset("asset", assetID, color, size, owner, appraisedValue)); + } + + /** + * Deletes asset on the ledger. + * + * @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) { + 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()); + } + + ctx.getStub().delState(assetID); + } + + /** + * Checks the existence of the asset on the ledger + * + * @param ctx the transaction context + * @param assetID the ID of the asset + * @return boolean indicating the existence of the asset + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public boolean AssetExists(final Context ctx, final String assetID) { + String assetJSON = ctx.getStub().getStringState(assetID); + + return (assetJSON != null && !assetJSON.isEmpty()); + } + + /** + * Changes the owner of a asset on the ledger. + * + * @param ctx the transaction context + * @param assetID the ID of the asset being transferred + * @param newOwner the new owner + * @return the old owner + */ + @Transaction(intent = Transaction.TYPE.SUBMIT) + public String TransferAsset(final Context ctx, final String assetID, final String newOwner) { + Asset asset = ReadAsset(ctx, assetID); + String oldOwner = asset.getOwner(); + + putAsset(ctx, new Asset(asset.getDocType(), asset.getAssetID(), asset.getColor(), asset.getSize(), newOwner, asset.getAppraisedValue())); + + return oldOwner; + } + + /** + * GetQueryResultForQueryString executes the passed in query string. + * Result set is built and returned as a list of assets. + */ + private String getQueryResultForQueryString(final ChaincodeStub stub, final String queryString) { + QueryResultsIterator results = stub.getQueryResult(queryString); + List queryResults = new ArrayList<>(); + + for (KeyValue res: results) { + Asset asset = genson.deserialize(res.getStringValue(), Asset.class); + queryResults.add(asset); + } + + return genson.serialize(queryResults); + } + + /** + * QueryAssetsByOwner queries for assets based on the passed in owner. + * This is an example of a parameterized query where the query logic is baked into the chaincode, + * and accepting a single query parameter (owner). + * Only available on state databases that support rich query (e.g. CouchDB) + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String QueryAssetsByOwner(final Context ctx, final String owner) { + String queryString = String.format("{\"selector\":{\"docType\":\"asset\",\"owner\":\"%s\"}}", owner); + return getQueryResultForQueryString(ctx.getStub(), queryString); + } + + /** + * QueryAssets queries for assets based on a passed in query string. + * This is an example of a rich query where the query string is passed in by the caller. + * Only available on state databases that support rich query (e.g. CouchDB) + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String QueryAssets(final Context ctx, final String queryString) { + return getQueryResultForQueryString(ctx.getStub(), queryString); + } + + /** + * GetAssetHistory returns the chain of custody for an asset since issuance. + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String GetAssetHistory(final Context ctx, final String assetID) { + QueryResultsIterator results = ctx.getStub().getHistoryForKey(assetID); + List history = new ArrayList<>(); + + for (KeyModification res: results) { + history.add(res); + } + + return genson.serialize(history); + } + + /** + * QueryAssetsWithPagination executes a "rich" query, and returns a page of results. + */ + @Transaction(intent = Transaction.TYPE.EVALUATE) + public String QueryAssetsWithPagination(final Context ctx, final String queryString, final int pageSize, final String bookmark) { + QueryResultsIteratorWithMetadata results = ctx.getStub().getQueryResultWithPagination(queryString, pageSize, bookmark); + + List queryResults = new ArrayList<>(); + for (KeyValue res: results) { + Asset asset = genson.deserialize(res.getStringValue(), Asset.class); + queryResults.add(asset); + } + + // Return results and metadata (bookmark & fetched records count) + // For simplicity, we just return the results here in this sample. + return genson.serialize(queryResults); + } +} diff --git a/asset-transfer-ledger-queries/chaincode-java/src/main/resources/META-INF/statedb/couchdb/indexes/indexOwner.json b/asset-transfer-ledger-queries/chaincode-java/src/main/resources/META-INF/statedb/couchdb/indexes/indexOwner.json new file mode 100644 index 00000000..305f0904 --- /dev/null +++ b/asset-transfer-ledger-queries/chaincode-java/src/main/resources/META-INF/statedb/couchdb/indexes/indexOwner.json @@ -0,0 +1 @@ +{"index":{"fields":["docType","owner"]},"ddoc":"indexOwnerDoc", "name":"indexOwner","type":"json"} diff --git a/test-network/scripts/packageCC.sh b/test-network/scripts/packageCC.sh index e457164d..1a868364 100755 --- a/test-network/scripts/packageCC.sh +++ b/test-network/scripts/packageCC.sh @@ -53,6 +53,14 @@ elif [ "$CC_SRC_LANGUAGE" = "java" ]; then ./gradlew installDist popd successln "Finished compiling Java code" + + # Copy META-INF to the distribution directory if it exists + if [ -d "$CC_SRC_PATH/src/main/resources/META-INF" ]; then + cp -r "$CC_SRC_PATH/src/main/resources/META-INF" "$CC_SRC_PATH/build/install/$CC_NAME/" + elif [ -d "$CC_SRC_PATH/META-INF" ]; then + cp -r "$CC_SRC_PATH/META-INF" "$CC_SRC_PATH/build/install/$CC_NAME/" + fi + CC_SRC_PATH=$CC_SRC_PATH/build/install/$CC_NAME elif [ "$CC_SRC_LANGUAGE" = "javascript" ]; then